555251559120 has 480 divisors, whose sum is σ = 1990432604160. Its totient is φ = 143779484160.

The previous prime is 555251559113. The next prime is 555251559131. The reversal of 555251559120 is 21955152555.

555251559120 is a `hidden beast` number, since 5 + 5 + 5 + 2 + 51 + 5 + 591 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 119689761 + ... + 119694399.

It is an arithmetic number, because the mean of its divisors is an integer number (4146734592).

Almost surely, 2^555251559120 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 555251559120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (995216302080).

555251559120 is an abundant number, since it is smaller than the sum of its proper divisors (1435181045040).

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

555251559120 is a wasteful number, since it uses less digits than its factorization.

555251559120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845 (or 4827 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 555251559120 in words is "five hundred fifty-five billion, two hundred fifty-one million, five hundred fifty-nine thousand, one hundred twenty".