56433031 has 4 divisors (see below), whose sum is σ = 57067200. Its totient is φ = 55798864.

The previous prime is 56432993. The next prime is 56433037. The reversal of 56433031 is 13033465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13033465 = 5 ⋅2606693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56433031 is a prime.

It is a super-2 number, since 2×56433031² = 6369373975693922, 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 = 56432987 and 56433005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56433037) 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, 316951 + ... + 317128.

It is an arithmetic number, because the mean of its divisors is an integer number (14266800).

Almost surely, 2^56433031 is an apocalyptic number.

56433031 is a deficient number, since it is larger than the sum of its proper divisors (634169).

56433031 is an equidigital number, since it uses as much as digits as its factorization.

56433031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634168.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 56433031 is about 7512.1921567542. The cubic root of 56433031 is about 383.5698466499.

Adding to 56433031 its reverse (13033465), we get a palindrome (69466496).

The spelling of 56433031 in words is "fifty-six million, four hundred thirty-three thousand, thirty-one".