55053557503278 has 32 divisors (see below), whose sum is σ = 110170885968000. Its totient is φ = 18340558812576.

The previous prime is 55053557503253. The next prime is 55053557503279. The reversal of 55053557503278 is 87230575535055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55053557503279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155805148 + ... + 156158096.

It is an arithmetic number, because the mean of its divisors is an integer number (3442840186500).

Almost surely, 2^{55053557503278} is an apocalyptic number.

55053557503278 is an abundant number, since it is smaller than the sum of its proper divisors (55117328464722).

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

55053557503278 is a wasteful number, since it uses less digits than its factorization.

55053557503278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367936.

The product of its (nonzero) digits is 110250000, while the sum is 60.

The spelling of 55053557503278 in words is "fifty-five trillion, fifty-three billion, five hundred fifty-seven million, five hundred three thousand, two hundred seventy-eight".