56521336 has 8 divisors (see below), whose sum is σ = 105977520. Its totient is φ = 28260664.

The previous prime is 56521331. The next prime is 56521337. The reversal of 56521336 is 63312565.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×56521336² = 6389322846449792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56521298 and 56521307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56521331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3532576 + ... + 3532591.

It is an arithmetic number, because the mean of its divisors is an integer number (13247190).

Almost surely, 2^56521336 is an apocalyptic number.

It is an amenable number.

56521336 is a deficient number, since it is larger than the sum of its proper divisors (49456184).

56521336 is a wasteful number, since it uses less digits than its factorization.

56521336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065173 (or 7065169 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 56521336 is about 7518.0673048331. The cubic root of 56521336 is about 383.7698092318.

The spelling of 56521336 in words is "fifty-six million, five hundred twenty-one thousand, three hundred thirty-six".