55870464 has 88 divisors (see below), whose sum is σ = 160484800. Its totient is φ = 17178624.

The previous prime is 55870439. The next prime is 55870471. The reversal of 55870464 is 46407855.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39237 + ... + 40635.

Almost surely, 2^55870464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55870464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80242400).

55870464 is an abundant number, since it is smaller than the sum of its proper divisors (104614336).

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

55870464 is a wasteful number, since it uses less digits than its factorization.

55870464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 55870464 is about 7474.6547746368. The cubic root of 55870464 is about 382.2910166019.

The spelling of 55870464 in words is "fifty-five million, eight hundred seventy thousand, four hundred sixty-four".