55616254420500 has 72 divisors (see below), whose sum is σ = 175450743959400. Its totient is φ = 14831001177600.

The previous prime is 55616254420451. The next prime is 55616254420511. The reversal of 55616254420500 is 502445261655.

55616254420500 is a `hidden beast` number, since 5 + 5 + 61 + 6 + 25 + 44 + 20 + 500 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14534256513924 + 41081997906576 = 3812382^2 + 6409524^2 .

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 23 ways as a sum of consecutive naturals, for example, 6179579325 + ... + 6179588324.

It is an arithmetic number, because the mean of its divisors is an integer number (2436815888325).

Almost surely, 2^{55616254420500} is an apocalyptic number.

55616254420500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55616254420500 is an abundant number, since it is smaller than the sum of its proper divisors (119834489538900).

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

55616254420500 is a wasteful number, since it uses less digits than its factorization.

55616254420500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12359167674 (or 12359167659 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 55616254420500 in words is "fifty-five trillion, six hundred sixteen billion, two hundred fifty-four million, four hundred twenty thousand, five hundred".