56693129 has 4 divisors (see below), whose sum is σ = 56770176. Its totient is φ = 56616084.

The previous prime is 56693099. The next prime is 56693149. The reversal of 56693129 is 92139665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92139665 = 5 ⋅18427933.

It is a cyclic number.

It is not a de Polignac number, because 56693129 - 2²⁴ = 39915913 is a prime.

It is a super-2 number, since 2×56693129² = 6428221751621282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56693149) 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, 37409 + ... + 38894.

It is an arithmetic number, because the mean of its divisors is an integer number (14192544).

Almost surely, 2^56693129 is an apocalyptic number.

It is an amenable number.

56693129 is a deficient number, since it is larger than the sum of its proper divisors (77047).

56693129 is an equidigital number, since it uses as much as digits as its factorization.

56693129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77046.

The product of its digits is 87480, while the sum is 41.

The square root of 56693129 is about 7529.4839796629. The cubic root of 56693129 is about 384.1582305987.

The spelling of 56693129 in words is "fifty-six million, six hundred ninety-three thousand, one hundred twenty-nine".