56862813 has 16 divisors (see below), whose sum is σ = 88664576. Its totient is φ = 31736880.

The previous prime is 56862811. The next prime is 56862863. The reversal of 56862813 is 31826865.

It is a happy number.

It is not a de Polignac number, because 56862813 - 2¹ = 56862811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56862811) 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, 30583 + ... + 32388.

It is an arithmetic number, because the mean of its divisors is an integer number (5541536).

Almost surely, 2^56862813 is an apocalyptic number.

It is an amenable number.

56862813 is a deficient number, since it is larger than the sum of its proper divisors (31801763).

56862813 is a wasteful number, since it uses less digits than its factorization.

56862813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63024.

The product of its digits is 69120, while the sum is 39.

The square root of 56862813 is about 7540.7435309789. The cubic root of 56862813 is about 384.5411140293.

It can be divided in two parts, 56862 and 813, that added together give a palindrome (57675).

The spelling of 56862813 in words is "fifty-six million, eight hundred sixty-two thousand, eight hundred thirteen".