56603772 has 30 divisors (see below), whose sum is σ = 147974288. Its totient is φ = 18867816.

The previous prime is 56603731. The next prime is 56603777. The reversal of 56603772 is 27730665.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56603777) 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 9 ways as a sum of consecutive naturals, for example, 87028 + ... + 87675.

Almost surely, 2^56603772 is an apocalyptic number.

It is an amenable number.

56603772 is an abundant number, since it is smaller than the sum of its proper divisors (91370516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56603772 is a wasteful number, since it uses less digits than its factorization.

56603772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174719 (or 174708 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 56603772 is about 7523.5478333031. The cubic root of 56603772 is about 383.9562938538.

It can be divided in two parts, 56603 and 772, that added together give a palindrome (57375).

The spelling of 56603772 in words is "fifty-six million, six hundred three thousand, seven hundred seventy-two".