56632311 has 32 divisors (see below), whose sum is σ = 87333120. Its totient is φ = 36238752.

The previous prime is 56632307. The next prime is 56632337. The reversal of 56632311 is 11323665.

It is not a de Polignac number, because 56632311 - 2² = 56632307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56632361) 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, 82576 + ... + 83258.

It is an arithmetic number, because the mean of its divisors is an integer number (2729160).

Almost surely, 2^56632311 is an apocalyptic number.

56632311 is a deficient number, since it is larger than the sum of its proper divisors (30700809).

56632311 is a wasteful number, since it uses less digits than its factorization.

56632311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 806 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 56632311 is about 7525.4442393788. Note that the first 3 decimals coincide. The cubic root of 56632311 is about 384.0208118603.

Adding to 56632311 its reverse (11323665), we get a palindrome (67955976).

The spelling of 56632311 in words is "fifty-six million, six hundred thirty-two thousand, three hundred eleven".