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53556061 = 134119697
BaseRepresentation
bin1100110001001…
…1001101011101
310201202221002211
43030103031131
5102202243221
65151520421
71220135056
oct314231535
9121687084
1053556061
112825a509
1215b29111
13b131ba0
14718172d
154a7d6e1
hex331335d

53556061 has 4 divisors (see below), whose sum is σ = 57675772. Its totient is φ = 49436352.

The previous prime is 53556059. The next prime is 53556089. The reversal of 53556061 is 16065535.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12467961 + 41088100 = 3531^2 + 6410^2 .

It is a cyclic number.

It is not a de Polignac number, because 53556061 - 21 = 53556059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53556031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2059836 + ... + 2059861.

It is an arithmetic number, because the mean of its divisors is an integer number (14418943).

Almost surely, 253556061 is an apocalyptic number.

It is an amenable number.

53556061 is a deficient number, since it is larger than the sum of its proper divisors (4119711).

53556061 is a wasteful number, since it uses less digits than its factorization.

53556061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119710.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 53556061 is about 7318.2006668306. The cubic root of 53556061 is about 376.9376707226.

The spelling of 53556061 in words is "fifty-three million, five hundred fifty-six thousand, sixty-one".

Divisors: 1 13 4119697 53556061