55912737040 has 20 divisors (see below), whose sum is σ = 129997113804. Its totient is φ = 22365094784.

The previous prime is 55912737019. The next prime is 55912737071. The reversal of 55912737040 is 4073721955.

It can be written as a sum of positive squares in 2 ways, for example, as 23989053456 + 31923683584 = 154884^2 + 178672^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 349454527 + ... + 349454686.

Almost surely, 2^55912737040 is an apocalyptic number.

It is an amenable number.

55912737040 is an abundant number, since it is smaller than the sum of its proper divisors (74084376764).

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

55912737040 is a wasteful number, since it uses less digits than its factorization.

55912737040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698909226 (or 698909220 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 55912737040 in words is "fifty-five billion, nine hundred twelve million, seven hundred thirty-seven thousand, forty".