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55050501 = 3111668197
BaseRepresentation
bin1101001000000…
…0000100000101
310211120212002110
43102000010011
5103043104001
65243531233
71235631042
oct322000405
9124525073
1055050501
1129090290
1216529b19
13b53617c
1474501c9
154c763d6
hex3480105

55050501 has 8 divisors (see below), whose sum is σ = 80073504. Its totient is φ = 33363920.

The previous prime is 55050493. The next prime is 55050521. The reversal of 55050501 is 10505055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55050501 - 23 = 55050493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834066 + ... + 834131.

It is an arithmetic number, because the mean of its divisors is an integer number (10009188).

Almost surely, 255050501 is an apocalyptic number.

It is an amenable number.

55050501 is a deficient number, since it is larger than the sum of its proper divisors (25023003).

55050501 is a wasteful number, since it uses less digits than its factorization.

55050501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668211.

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 55050501 is about 7419.6024826132. The cubic root of 55050501 is about 380.4116061678.

Adding to 55050501 its reverse (10505055), we get a palindrome (65555556).

The spelling of 55050501 in words is "fifty-five million, fifty thousand, five hundred one".

Divisors: 1 3 11 33 1668197 5004591 18350167 55050501