55681031732 has 24 divisors (see below), whose sum is σ = 98640763200. Its totient is φ = 27498126656.

The previous prime is 55681031671. The next prime is 55681031737. The reversal of 55681031732 is 23713018655.

It is a self number, because there is not a number n which added to its sum of digits gives 55681031732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55681031737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444769 + ... + 1482807.

It is an arithmetic number, because the mean of its divisors is an integer number (4110031800).

Almost surely, 2^55681031732 is an apocalyptic number.

It is an amenable number.

55681031732 is a deficient number, since it is larger than the sum of its proper divisors (42959731468).

55681031732 is a wasteful number, since it uses less digits than its factorization.

55681031732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42535 (or 42533 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 55681031732 in words is "fifty-five billion, six hundred eighty-one million, thirty-one thousand, seven hundred thirty-two".