56851307 has 4 divisors (see below), whose sum is σ = 56974560. Its totient is φ = 56728056.

The previous prime is 56851261. The next prime is 56851313. The reversal of 56851307 is 70315865.

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 56851307 - 2²⁴ = 40074091 is a prime.

It is a super-2 number, since 2×56851307² = 6464142215216498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56851337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60932 + ... + 61857.

It is an arithmetic number, because the mean of its divisors is an integer number (14243640).

Almost surely, 2^56851307 is an apocalyptic number.

56851307 is a deficient number, since it is larger than the sum of its proper divisors (123253).

56851307 is a wasteful number, since it uses less digits than its factorization.

56851307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123252.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 56851307 is about 7539.9805702667. The cubic root of 56851307 is about 384.5151754103.

The spelling of 56851307 in words is "fifty-six million, eight hundred fifty-one thousand, three hundred seven".