56503761 has 16 divisors (see below), whose sum is σ = 76496448. Its totient is φ = 37094400.

The previous prime is 56503757. The next prime is 56503817. The reversal of 56503761 is 16730565.

It is not a de Polignac number, because 56503761 - 2² = 56503757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56503261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81426 + ... + 82116.

It is an arithmetic number, because the mean of its divisors is an integer number (4781028).

Almost surely, 2^56503761 is an apocalyptic number.

It is an amenable number.

56503761 is a deficient number, since it is larger than the sum of its proper divisors (19992687).

56503761 is a wasteful number, since it uses less digits than its factorization.

56503761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 56503761 is about 7516.8983630218. The cubic root of 56503761 is about 383.7300280679.

The spelling of 56503761 in words is "fifty-six million, five hundred three thousand, seven hundred sixty-one".