56431033 has 4 divisors (see below), whose sum is σ = 56465188. Its totient is φ = 56396880.

The previous prime is 56431009. The next prime is 56431057. The reversal of 56431033 is 33013465.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (56431009) and next prime (56431057).

It can be written as a sum of positive squares in 2 ways, for example, as 20766249 + 35664784 = 4557^2 + 5972^2 .

It is a cyclic number.

It is not a de Polignac number, because 56431033 - 2¹⁷ = 56299961 is a prime.

It is a super-2 number, since 2×56431033² = 6368922970894178, 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 = 56430989 and 56431007.

It is not an unprimeable number, because it can be changed into a prime (56431433) 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, 14466 + ... + 17947.

It is an arithmetic number, because the mean of its divisors is an integer number (14116297).

Almost surely, 2^56431033 is an apocalyptic number.

It is an amenable number.

56431033 is a deficient number, since it is larger than the sum of its proper divisors (34155).

56431033 is a wasteful number, since it uses less digits than its factorization.

56431033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34154.

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

The square root of 56431033 is about 7512.0591717584. The cubic root of 56431033 is about 383.5653198590.

Adding to 56431033 its reverse (33013465), we get a palindrome (89444498).

The spelling of 56431033 in words is "fifty-six million, four hundred thirty-one thousand, thirty-three".