55786147720488 has 48 divisors (see below), whose sum is σ = 151097280122880. Its totient is φ = 18594176824224.

The previous prime is 55786147720393. The next prime is 55786147720517. The reversal of 55786147720488 is 88402774168755.

55786147720488 is a `hidden beast` number, since 5 + 5 + 7 + 86 + 1 + 47 + 7 + 20 + 488 = 666.

It is a super-2 number, since 2×55786147720488² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24001320 + ... + 26222807.

It is an arithmetic number, because the mean of its divisors is an integer number (3147860002560).

Almost surely, 2^{55786147720488} is an apocalyptic number.

It is an amenable number.

55786147720488 is an abundant number, since it is smaller than the sum of its proper divisors (95311132402392).

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

55786147720488 is a wasteful number, since it uses less digits than its factorization.

55786147720488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50239566 (or 50239559 counting only the distinct ones).

The product of its (nonzero) digits is 842956800, while the sum is 72.

The spelling of 55786147720488 in words is "fifty-five trillion, seven hundred eighty-six billion, one hundred forty-seven million, seven hundred twenty thousand, four hundred eighty-eight".