55869464 has 32 divisors (see below), whose sum is σ = 122273280. Its totient is φ = 23433504.

The previous prime is 55869421. The next prime is 55869479. The reversal of 55869464 is 46496855.

It is a super-4 number, since 4×55869464⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7982 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (3821040).

Almost surely, 2^55869464 is an apocalyptic number.

It is an amenable number.

55869464 is an abundant number, since it is smaller than the sum of its proper divisors (66403816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55869464 is a wasteful number, since it uses less digits than its factorization.

55869464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21287 (or 21283 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 55869464 is about 7474.5878816159. The cubic root of 55869464 is about 382.2887357707.

The spelling of 55869464 in words is "fifty-five million, eight hundred sixty-nine thousand, four hundred sixty-four".