56929919 has 4 divisors (see below), whose sum is σ = 58766400. Its totient is φ = 55093440.

The previous prime is 56929913. The next prime is 56929921. The reversal of 56929919 is 91992965.

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 56929919 - 2⁴ = 56929903 is a prime.

It is a super-2 number, since 2×56929919² = 6482031354693122, 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 (56929913) 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, 918194 + ... + 918255.

It is an arithmetic number, because the mean of its divisors is an integer number (14691600).

Almost surely, 2^56929919 is an apocalyptic number.

56929919 is a deficient number, since it is larger than the sum of its proper divisors (1836481).

56929919 is a wasteful number, since it uses less digits than its factorization.

56929919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836480.

The product of its digits is 393660, while the sum is 50.

The square root of 56929919 is about 7545.1917802002. The cubic root of 56929919 is about 384.6923251643.

The spelling of 56929919 in words is "fifty-six million, nine hundred twenty-nine thousand, nine hundred nineteen".