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56652157 = 62879011
BaseRepresentation
bin1101100000011…
…1000101111101
310221121020011001
43120013011331
5104000332112
65342130301
71255351432
oct330070575
9127536131
1056652157
1129a84671
1216b80991
13b9771b3
147749b89
154e90c57
hex360717d

56652157 has 4 divisors (see below), whose sum is σ = 56667456. Its totient is φ = 56636860.

The previous prime is 56652139. The next prime is 56652173. The reversal of 56652157 is 75125665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75125665 = 515025133.

It is a cyclic number.

It is not a de Polignac number, because 56652157 - 211 = 56650109 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 (56652187) 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, 1782 + ... + 10792.

It is an arithmetic number, because the mean of its divisors is an integer number (14166864).

Almost surely, 256652157 is an apocalyptic number.

It is an amenable number.

56652157 is a deficient number, since it is larger than the sum of its proper divisors (15299).

56652157 is an equidigital number, since it uses as much as digits as its factorization.

56652157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298.

The product of its digits is 63000, while the sum is 37.

The square root of 56652157 is about 7526.7627171314. The cubic root of 56652157 is about 384.0656648592.

The spelling of 56652157 in words is "fifty-six million, six hundred fifty-two thousand, one hundred fifty-seven".

Divisors: 1 6287 9011 56652157