55638894488 has 32 divisors (see below), whose sum is σ = 108039106560. Its totient is φ = 26834315040.

The previous prime is 55638894481. The next prime is 55638894503. The reversal of 55638894488 is 88449883655.

It is a happy number.

55638894488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55638894481) 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, 289256 + ... + 441527.

It is an arithmetic number, because the mean of its divisors is an integer number (3376222080).

Almost surely, 2^55638894488 is an apocalyptic number.

It is an amenable number.

55638894488 is a deficient number, since it is larger than the sum of its proper divisors (52400212072).

55638894488 is a wasteful number, since it uses less digits than its factorization.

55638894488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731127 (or 731123 counting only the distinct ones).

The product of its digits is 265420800, while the sum is 68.

The spelling of 55638894488 in words is "fifty-five billion, six hundred thirty-eight million, eight hundred ninety-four thousand, four hundred eighty-eight".