56836487 has 6 divisors (see below), whose sum is σ = 57139728. Its totient is φ = 56534804.

The previous prime is 56836453. The next prime is 56836499. The reversal of 56836487 is 78463865.

It is a de Polignac number, because none of the positive numbers 2^k-56836487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56836187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50978 + ... + 52080.

It is an arithmetic number, because the mean of its divisors is an integer number (9523288).

Almost surely, 2^56836487 is an apocalyptic number.

56836487 is a deficient number, since it is larger than the sum of its proper divisors (303241).

56836487 is an equidigital number, since it uses as much as digits as its factorization.

56836487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1330 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 56836487 is about 7538.9977450587. The cubic root of 56836487 is about 384.4817606984.

The spelling of 56836487 in words is "fifty-six million, eight hundred thirty-six thousand, four hundred eighty-seven".