56629619 has 4 divisors (see below), whose sum is σ = 56649960. Its totient is φ = 56609280.

The previous prime is 56629609. The next prime is 56629627. The reversal of 56629619 is 91692665.

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 56629619 - 2¹² = 56625523 is a prime.

It is a super-2 number, since 2×56629619² = 6413827496170322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56629619.

It is not an unprimeable number, because it can be changed into a prime (56629609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5177 + ... + 11834.

It is an arithmetic number, because the mean of its divisors is an integer number (14162490).

Almost surely, 2^56629619 is an apocalyptic number.

56629619 is a deficient number, since it is larger than the sum of its proper divisors (20341).

56629619 is a wasteful number, since it uses less digits than its factorization.

56629619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20340.

The product of its digits is 174960, while the sum is 44.

The square root of 56629619 is about 7525.2653773804. The cubic root of 56629619 is about 384.0147269923.

The spelling of 56629619 in words is "fifty-six million, six hundred twenty-nine thousand, six hundred nineteen".