56635969 has 8 divisors (see below), whose sum is σ = 61765760. Its totient is φ = 51616656.

The previous prime is 56635949. The next prime is 56636003. The reversal of 56635969 is 96953665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56635969 - 2⁷ = 56635841 is a prime.

It is a super-2 number, since 2×56635969² = 6415265969137922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56635949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26547 + ... + 28600.

It is an arithmetic number, because the mean of its divisors is an integer number (7720720).

Almost surely, 2^56635969 is an apocalyptic number.

It is an amenable number.

56635969 is a deficient number, since it is larger than the sum of its proper divisors (5129791).

56635969 is a wasteful number, since it uses less digits than its factorization.

56635969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55239.

The product of its digits is 1312200, while the sum is 49.

The square root of 56635969 is about 7525.6872775847. The cubic root of 56635969 is about 384.0290799194.

The spelling of 56635969 in words is "fifty-six million, six hundred thirty-five thousand, nine hundred sixty-nine".