56432121 has 24 divisors (see below), whose sum is σ = 79881984. Its totient is φ = 35387040.

The previous prime is 56432107. The next prime is 56432191. The reversal of 56432121 is 12123465.

It is not a de Polignac number, because 56432121 - 2¹⁰ = 56431097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56432091 and 56432100.

It is not an unprimeable number, because it can be changed into a prime (56432191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 527350 + ... + 527456.

It is an arithmetic number, because the mean of its divisors is an integer number (3328416).

Almost surely, 2^56432121 is an apocalyptic number.

It is an amenable number.

56432121 is a deficient number, since it is larger than the sum of its proper divisors (23449863).

56432121 is a wasteful number, since it uses less digits than its factorization.

56432121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 194 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 56432121 is about 7512.1315883043. The cubic root of 56432121 is about 383.5677849116.

Adding to 56432121 its reverse (12123465), we get a palindrome (68555586).

The spelling of 56432121 in words is "fifty-six million, four hundred thirty-two thousand, one hundred twenty-one".