55447068624 has 40 divisors (see below), whose sum is σ = 151664042880. Its totient is φ = 17395158528.

The previous prime is 55447068541. The next prime is 55447068631. The reversal of 55447068624 is 42686074455.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 33974104 + ... + 33975735.

It is an arithmetic number, because the mean of its divisors is an integer number (3791601072).

Almost surely, 2^55447068624 is an apocalyptic number.

It is an amenable number.

55447068624 is an abundant number, since it is smaller than the sum of its proper divisors (96216974256).

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

55447068624 is a wasteful number, since it uses less digits than its factorization.

55447068624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67949867 (or 67949861 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 51.

The spelling of 55447068624 in words is "fifty-five billion, four hundred forty-seven million, sixty-eight thousand, six hundred twenty-four".