56072919 has 32 divisors (see below), whose sum is σ = 94417920. Its totient is φ = 28841472.

The previous prime is 56072917. The next prime is 56072923. The reversal of 56072919 is 91927065.

56072919 = 362² + 363² + ... + 599².

It is not a de Polignac number, because 56072919 - 2¹ = 56072917 is a prime.

It is a super-2 number, since 2×56072919² = 6288344490361122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56072911) 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 31 ways as a sum of consecutive naturals, for example, 4797 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (2950560).

Almost surely, 2^56072919 is an apocalyptic number.

56072919 is a deficient number, since it is larger than the sum of its proper divisors (38345001).

56072919 is a wasteful number, since it uses less digits than its factorization.

56072919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 56072919 is about 7488.1852941818. The cubic root of 56072919 is about 382.7522228981.

The spelling of 56072919 in words is "fifty-six million, seventy-two thousand, nine hundred nineteen".