56232621 has 6 divisors (see below), whose sum is σ = 81224910. Its totient is φ = 37488408.

The previous prime is 56232619. The next prime is 56232661. The reversal of 56232621 is 12623265.

56232621 is a `hidden beast` number, since 5 + 6 + 2 + 32 + 621 = 666.

56232621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 41139396 + 15093225 = 6414^2 + 3885^2 .

It is not a de Polignac number, because 56232621 - 2¹ = 56232619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56232611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3124026 + ... + 3124043.

It is an arithmetic number, because the mean of its divisors is an integer number (13537485).

Almost surely, 2^56232621 is an apocalyptic number.

It is an amenable number.

56232621 is a deficient number, since it is larger than the sum of its proper divisors (24992289).

56232621 is a wasteful number, since it uses less digits than its factorization.

56232621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248075 (or 6248072 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 56232621 is about 7498.8413104959. The cubic root of 56232621 is about 383.1152523052.

Adding to 56232621 its reverse (12623265), we get a palindrome (68855886).

The spelling of 56232621 in words is "fifty-six million, two hundred thirty-two thousand, six hundred twenty-one".