55007614638 has 24 divisors (see below), whose sum is σ = 119896843248. Its totient is φ = 18226074912.

The previous prime is 55007614631. The next prime is 55007614661. The reversal of 55007614638 is 83641670055.

55007614638 is a `hidden beast` number, since 5 + 5 + 0 + 0 + 7 + 6 + 1 + 4 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 55007614593 and 55007614602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55007614631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9146631 + ... + 9152642.

It is an arithmetic number, because the mean of its divisors is an integer number (4995701802).

Almost surely, 2^55007614638 is an apocalyptic number.

55007614638 is an abundant number, since it is smaller than the sum of its proper divisors (64889228610).

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

55007614638 is a wasteful number, since it uses less digits than its factorization.

55007614638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18299448 (or 18299445 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 55007614638 in words is "fifty-five billion, seven million, six hundred fourteen thousand, six hundred thirty-eight".