56072655 has 20 divisors (see below), whose sum is σ = 100516152. Its totient is φ = 29905200.

The previous prime is 56072651. The next prime is 56072657. The reversal of 56072655 is 55627065.

It is not a de Polignac number, because 56072655 - 2² = 56072651 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56072651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68821 + ... + 69630.

Almost surely, 2^56072655 is an apocalyptic number.

56072655 is a deficient number, since it is larger than the sum of its proper divisors (44443497).

56072655 is a wasteful number, since it uses less digits than its factorization.

56072655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138468 (or 138459 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 56072655 is about 7488.1676663921. The cubic root of 56072655 is about 382.7516222115.

The spelling of 56072655 in words is "fifty-six million, seventy-two thousand, six hundred fifty-five".