55542584440 has 64 divisors (see below), whose sum is σ = 142966065600. Its totient is φ = 19024201728.

The previous prime is 55542584429. The next prime is 55542584519. The reversal of 55542584440 is 4448524555.

55542584440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55542584440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184222 + ... + 380818.

It is an arithmetic number, because the mean of its divisors is an integer number (2233844775).

Almost surely, 2^55542584440 is an apocalyptic number.

It is an amenable number.

55542584440 is an abundant number, since it is smaller than the sum of its proper divisors (87423481160).

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

55542584440 is a wasteful number, since it uses less digits than its factorization.

55542584440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197624 (or 197620 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 46.

The spelling of 55542584440 in words is "fifty-five billion, five hundred forty-two million, five hundred eighty-four thousand, four hundred forty".