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64053550 = 25211116461
BaseRepresentation
bin1111010001011…
…0000100101110
311110112020221201
43310112010232
5112344203200
610204520114
71405306021
oct364260456
9143466851
1064053550
113317a420
121955003a
1310369012
1487151b8
155953c6a
hex3d1612e

64053550 has 24 divisors (see below), whose sum is σ = 129971592. Its totient is φ = 23292000.

The previous prime is 64053511. The next prime is 64053557. The reversal of 64053550 is 5535046.

64053550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64053557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57681 + ... + 58780.

It is an arithmetic number, because the mean of its divisors is an integer number (5415483).

Almost surely, 264053550 is an apocalyptic number.

64053550 is an abundant number, since it is smaller than the sum of its proper divisors (65918042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64053550 is a wasteful number, since it uses less digits than its factorization.

64053550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116484 (or 116479 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 64053550 is about 8003.3461751945. The cubic root of 64053550 is about 400.1115313990. Note that the first 3 decimals are identical.

Adding to 64053550 its reverse (5535046), we get a palindrome (69588596).

The spelling of 64053550 in words is "sixty-four million, fifty-three thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 116461 232922 582305 1164610 1281071 2562142 2911525 5823050 6405355 12810710 32026775 64053550