55306457238 has 16 divisors (see below), whose sum is σ = 117119556720. Its totient is φ = 17351045376.

The previous prime is 55306457207. The next prime is 55306457243. The reversal of 55306457238 is 83275460355.

It is a happy number.

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, 271109983 + ... + 271110186.

It is an arithmetic number, because the mean of its divisors is an integer number (7319972295).

Almost surely, 2^55306457238 is an apocalyptic number.

55306457238 is an abundant number, since it is smaller than the sum of its proper divisors (61813099482).

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

55306457238 is a wasteful number, since it uses less digits than its factorization.

55306457238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542220191.

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 55306457238 in words is "fifty-five billion, three hundred six million, four hundred fifty-seven thousand, two hundred thirty-eight".