56999413 has 4 divisors (see below), whose sum is σ = 58964940. Its totient is φ = 55033888.

The previous prime is 56999407. The next prime is 56999417. The reversal of 56999413 is 31499965.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32467204 + 24532209 = 5698^2 + 4953^2 .

It is a cyclic number.

It is not a de Polignac number, because 56999413 - 2²¹ = 54902261 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 (56999417) 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, 982720 + ... + 982777.

It is an arithmetic number, because the mean of its divisors is an integer number (14741235).

Almost surely, 2^56999413 is an apocalyptic number.

It is an amenable number.

56999413 is a deficient number, since it is larger than the sum of its proper divisors (1965527).

56999413 is a wasteful number, since it uses less digits than its factorization.

56999413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965526.

The product of its digits is 262440, while the sum is 46.

The square root of 56999413 is about 7549.7955601460. The cubic root of 56999413 is about 384.8487920295.

The spelling of 56999413 in words is "fifty-six million, nine hundred ninety-nine thousand, four hundred thirteen".