56749719 has 8 divisors (see below), whose sum is σ = 81486832. Its totient is φ = 34922880.

The previous prime is 56749711. The next prime is 56749733. The reversal of 56749719 is 91794765.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56749719 - 2³ = 56749711 is a prime.

It is a super-2 number, since 2×56749719² = 6441061213157922, 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 (56749711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727522 + ... + 727599.

It is an arithmetic number, because the mean of its divisors is an integer number (10185854).

Almost surely, 2^56749719 is an apocalyptic number.

56749719 is a deficient number, since it is larger than the sum of its proper divisors (24737113).

56749719 is a wasteful number, since it uses less digits than its factorization.

56749719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455137.

The product of its digits is 476280, while the sum is 48.

The square root of 56749719 is about 7533.2409360115. The cubic root of 56749719 is about 384.2860078993.

The spelling of 56749719 in words is "fifty-six million, seven hundred forty-nine thousand, seven hundred nineteen".