55856381502 has 16 divisors (see below), whose sum is σ = 111715877520. Its totient is φ = 18618274752.

The previous prime is 55856381501. The next prime is 55856381527. The reversal of 55856381502 is 20518365855.

55856381502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55856381501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149658 + ... + 366210.

It is an arithmetic number, because the mean of its divisors is an integer number (6982242345).

Almost surely, 2^55856381502 is an apocalyptic number.

55856381502 is an abundant number, since it is smaller than the sum of its proper divisors (55859496018).

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

55856381502 is a wasteful number, since it uses less digits than its factorization.

55856381502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259547.

The product of its (nonzero) digits is 1440000, while the sum is 48.

The spelling of 55856381502 in words is "fifty-five billion, eight hundred fifty-six million, three hundred eighty-one thousand, five hundred two".