55409667512 has 32 divisors (see below), whose sum is σ = 106261761600. Its totient is φ = 27074955264.

The previous prime is 55409667503. The next prime is 55409667541. The reversal of 55409667512 is 21576690455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143564 + ... + 362532.

It is an arithmetic number, because the mean of its divisors is an integer number (3320680050).

Almost surely, 2^55409667512 is an apocalyptic number.

It is an amenable number.

55409667512 is a deficient number, since it is larger than the sum of its proper divisors (50852094088).

55409667512 is a wasteful number, since it uses less digits than its factorization.

55409667512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219695 (or 219691 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 55409667512 in words is "fifty-five billion, four hundred nine million, six hundred sixty-seven thousand, five hundred twelve".