56695619 has 4 divisors (see below), whose sum is σ = 56714640. Its totient is φ = 56676600.

The previous prime is 56695589. The next prime is 56695631. The reversal of 56695619 is 91659665.

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 56695619 - 2⁸ = 56695363 is a prime.

It is a super-2 number, since 2×56695619² = 6428786427586322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56595619) 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, 3959 + ... + 11360.

It is an arithmetic number, because the mean of its divisors is an integer number (14178660).

Almost surely, 2^56695619 is an apocalyptic number.

56695619 is a deficient number, since it is larger than the sum of its proper divisors (19021).

56695619 is a wasteful number, since it uses less digits than its factorization.

56695619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19020.

The product of its digits is 437400, while the sum is 47.

The square root of 56695619 is about 7529.6493278240. The cubic root of 56695619 is about 384.1638546782.

The spelling of 56695619 in words is "fifty-six million, six hundred ninety-five thousand, six hundred nineteen".