56249031 has 16 divisors (see below), whose sum is σ = 77073920. Its totient is φ = 36469440.

The previous prime is 56249029. The next prime is 56249033. The reversal of 56249031 is 13094265.

It is an interprime number because it is at equal distance from previous prime (56249029) and next prime (56249033).

It is not a de Polignac number, because 56249031 - 2¹ = 56249029 is a prime.

It is a super-2 number, since 2×56249031² = 6327906976877922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56249031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56249033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34155 + ... + 35763.

It is an arithmetic number, because the mean of its divisors is an integer number (4817120).

Almost surely, 2^56249031 is an apocalyptic number.

56249031 is a deficient number, since it is larger than the sum of its proper divisors (20824889).

56249031 is a wasteful number, since it uses less digits than its factorization.

56249031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 56249031 is about 7499.9353997218. The cubic root of 56249031 is about 383.1525160246.

The spelling of 56249031 in words is "fifty-six million, two hundred forty-nine thousand, thirty-one".