56690069 has 4 divisors (see below), whose sum is σ = 56709120. Its totient is φ = 56671020.

The previous prime is 56690059. The next prime is 56690071. The reversal of 56690069 is 96009665.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56690069 is a prime.

It is a super-2 number, since 2×56690069² = 6427527846449522, 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 (56690059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3989 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (14177280).

Almost surely, 2^56690069 is an apocalyptic number.

It is an amenable number.

56690069 is a deficient number, since it is larger than the sum of its proper divisors (19051).

56690069 is a wasteful number, since it uses less digits than its factorization.

56690069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19050.

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

The square root of 56690069 is about 7529.2807757448. The cubic root of 56690069 is about 384.1513188538.

The spelling of 56690069 in words is "fifty-six million, six hundred ninety thousand, sixty-nine".