55325400517720 has 16 divisors (see below), whose sum is σ = 124482151164960. Its totient is φ = 22130160207072.

The previous prime is 55325400517703. The next prime is 55325400517753. The reversal of 55325400517720 is 2771500452355.

It is a super-2 number, since 2×55325400517720² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691567506432 + ... + 691567506511.

It is an arithmetic number, because the mean of its divisors is an integer number (7780134447810).

Almost surely, 2^{55325400517720} is an apocalyptic number.

It is an amenable number.

55325400517720 is an abundant number, since it is smaller than the sum of its proper divisors (69156750647240).

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

55325400517720 is a wasteful number, since it uses less digits than its factorization.

55325400517720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383135012954 (or 1383135012950 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 46.

The spelling of 55325400517720 in words is "fifty-five trillion, three hundred twenty-five billion, four hundred million, five hundred seventeen thousand, seven hundred twenty".