53669864 has 24 divisors (see below), whose sum is σ = 102851490. Its totient is φ = 26255328.

The previous prime is 53669857. The next prime is 53669873. The reversal of 53669864 is 46896635.

It can be written as a sum of positive squares in only one way, i.e., 37332100 + 16337764 = 6110^2 + 4042^2 .

It is a super-3 number, since 3×53669864³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16154 + ... + 19190.

Almost surely, 2^53669864 is an apocalyptic number.

It is an amenable number.

53669864 is a deficient number, since it is larger than the sum of its proper divisors (49181626).

53669864 is a wasteful number, since it uses less digits than its factorization.

53669864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3086 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 53669864 is about 7325.9718809179. The cubic root of 53669864 is about 377.2044708357.

The spelling of 53669864 in words is "fifty-three million, six hundred sixty-nine thousand, eight hundred sixty-four".