55573212787020 has 48 divisors (see below), whose sum is σ = 172894439783520. Its totient is φ = 14819523409728.

The previous prime is 55573212786979. The next prime is 55573212787051. The reversal of 55573212787020 is 2078721237555.

55573212787020 is a `hidden beast` number, since 5 + 5 + 573 + 21 + 27 + 8 + 7 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51456677967 + ... + 51456679046.

It is an arithmetic number, because the mean of its divisors is an integer number (3601967495490).

Almost surely, 2^{55573212787020} is an apocalyptic number.

It is an amenable number.

55573212787020 is an abundant number, since it is smaller than the sum of its proper divisors (117321226996500).

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

55573212787020 is a wasteful number, since it uses less digits than its factorization.

55573212787020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102913357031 (or 102913357023 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 54.

The spelling of 55573212787020 in words is "fifty-five trillion, five hundred seventy-three billion, two hundred twelve million, seven hundred eighty-seven thousand, twenty".