55407622044 has 12 divisors (see below), whose sum is σ = 129284451464. Its totient is φ = 18469207344.

The previous prime is 55407622031. The next prime is 55407622069. The reversal of 55407622044 is 44022670455.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 55407621993 and 55407622011.

It is a congruent number.

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, 2308650907 + ... + 2308650930.

Almost surely, 2^55407622044 is an apocalyptic number.

It is an amenable number.

55407622044 is an abundant number, since it is smaller than the sum of its proper divisors (73876829420).

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

55407622044 is a wasteful number, since it uses less digits than its factorization.

55407622044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617301844 (or 4617301842 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 55407622044 in words is "fifty-five billion, four hundred seven million, six hundred twenty-two thousand, forty-four".