56828351 has 4 divisors (see below), whose sum is σ = 56845752. Its totient is φ = 56810952.

The previous prime is 56828347. The next prime is 56828417. The reversal of 56828351 is 15382865.

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

It is a cyclic number.

It is not a de Polignac number, because 56828351 - 2² = 56828347 is a prime.

It is a super-2 number, since 2×56828351² = 6458922954758402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56828851) 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, 2165 + ... + 10878.

It is an arithmetic number, because the mean of its divisors is an integer number (14211438).

Almost surely, 2^56828351 is an apocalyptic number.

56828351 is a deficient number, since it is larger than the sum of its proper divisors (17401).

56828351 is a wasteful number, since it uses less digits than its factorization.

56828351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400.

The product of its digits is 57600, while the sum is 38.

The square root of 56828351 is about 7538.4581314749. The cubic root of 56828351 is about 384.4634139576.

The spelling of 56828351 in words is "fifty-six million, eight hundred twenty-eight thousand, three hundred fifty-one".