55315260 has 288 divisors, whose sum is σ = 226017792. Its totient is φ = 10575360.

The previous prime is 55315237. The next prime is 55315279. The reversal of 55315260 is 6251355.

55315260 is a `hidden beast` number, since 553 + 1 + 52 + 60 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 180027 + ... + 180333.

It is an arithmetic number, because the mean of its divisors is an integer number (784784).

Almost surely, 2^55315260 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 55315260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113008896).

55315260 is an abundant number, since it is smaller than the sum of its proper divisors (170702532).

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

55315260 is a wasteful number, since it uses less digits than its factorization.

55315260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 55315260 is about 7437.4229407773. The cubic root of 55315260 is about 381.0204796068.

The spelling of 55315260 in words is "fifty-five million, three hundred fifteen thousand, two hundred sixty".