56632521 has 32 divisors (see below), whose sum is σ = 88865280. Its totient is φ = 31708800.

The previous prime is 56632519. The next prime is 56632523. The reversal of 56632521 is 12523665.

56632521 = 193² + 194² + ... + 561².

It is an interprime number because it is at equal distance from previous prime (56632519) and next prime (56632523).

It is not a de Polignac number, because 56632521 - 2¹ = 56632519 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56632523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24606 + ... + 26808.

It is an arithmetic number, because the mean of its divisors is an integer number (2777040).

Almost surely, 2^56632521 is an apocalyptic number.

It is an amenable number.

56632521 is a deficient number, since it is larger than the sum of its proper divisors (32232759).

56632521 is a wasteful number, since it uses less digits than its factorization.

56632521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277.

The product of its digits is 10800, while the sum is 30.

The square root of 56632521 is about 7525.4581920306. The cubic root of 56632521 is about 384.0212865262.

The spelling of 56632521 in words is "fifty-six million, six hundred thirty-two thousand, five hundred twenty-one".