56432131 has 4 divisors (see below), whose sum is σ = 64493872. Its totient is φ = 48370392.

The previous prime is 56432107. The next prime is 56432191. The reversal of 56432131 is 13123465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13123465 = 5 ⋅2624693.

It is not a de Polignac number, because 56432131 - 2⁷ = 56432003 is a prime.

It is a super-2 number, since 2×56432131² = 6369170818402322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56432096 and 56432105.

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 3 ways as a sum of consecutive naturals, for example, 4030860 + ... + 4030873.

It is an arithmetic number, because the mean of its divisors is an integer number (16123468).

Almost surely, 2^56432131 is an apocalyptic number.

56432131 is a deficient number, since it is larger than the sum of its proper divisors (8061741).

56432131 is an equidigital number, since it uses as much as digits as its factorization.

56432131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061740.

The product of its digits is 2160, while the sum is 25.

The square root of 56432131 is about 7512.1322538944. The cubic root of 56432131 is about 383.5678075681.

Adding to 56432131 its reverse (13123465), we get a palindrome (69555596).

The spelling of 56432131 in words is "fifty-six million, four hundred thirty-two thousand, one hundred thirty-one".