56779719 has 16 divisors (see below), whose sum is σ = 78701952. Its totient is φ = 36380448.

The previous prime is 56779717. The next prime is 56779721. The reversal of 56779719 is 91797765.

It is an interprime number because it is at equal distance from previous prime (56779717) and next prime (56779721).

It is not a de Polignac number, because 56779719 - 2¹ = 56779717 is a prime.

It is a super-2 number, since 2×56779719² = 6447872979437922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56779717) 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, 6132 + ... + 12294.

It is an arithmetic number, because the mean of its divisors is an integer number (4918872).

Almost surely, 2^56779719 is an apocalyptic number.

56779719 is a deficient number, since it is larger than the sum of its proper divisors (21922233).

56779719 is a wasteful number, since it uses less digits than its factorization.

56779719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286.

The product of its digits is 833490, while the sum is 51.

The square root of 56779719 is about 7535.2318477934. The cubic root of 56779719 is about 384.3537119018.

The spelling of 56779719 in words is "fifty-six million, seven hundred seventy-nine thousand, seven hundred nineteen".