55625970391524 has 135 divisors (see below), whose sum is σ = 157468616385003. Its totient is φ = 17115146201088.

The previous prime is 55625970391513. The next prime is 55625970391547. The reversal of 55625970391524 is 42519307952655.

The square root of 55625970391524 is 7458282.

It is a perfect power (a square), and thus also a powerful number.

55625970391524 is a `hidden beast` number, since 5 + 5 + 6 + 2 + 5 + 9 + 70 + 39 + 1 + 524 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22427631151524 + 33198339240000 = 4735782^2 + 5761800^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1745222052 + ... + 1745253924.

Almost surely, 2^{55625970391524} is an apocalyptic number.

55625970391524 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55625970391524 is the 7458282-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55625970391524

55625970391524 is an abundant number, since it is smaller than the sum of its proper divisors (101842645993479).

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

55625970391524 is an frugal number, since it uses more digits than its factorization.

55625970391524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63788 (or 31891 counting only the distinct ones).

The product of its (nonzero) digits is 102060000, while the sum is 63.

The spelling of 55625970391524 in words is "fifty-five trillion, six hundred twenty-five billion, nine hundred seventy million, three hundred ninety-one thousand, five hundred twenty-four".