55326531140 has 24 divisors (see below), whose sum is σ = 116193620760. Its totient is φ = 22129106688.

The previous prime is 55326531133. The next prime is 55326531157. The reversal of 55326531140 is 4113562355.

It can be written as a sum of positive squares in 4 ways, for example, as 2750792704 + 52575738436 = 52448^2 + 229294^2 .

It is a super-2 number, since 2×55326531140² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55326531140.

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, 235304 + ... + 407456.

It is an arithmetic number, because the mean of its divisors is an integer number (4841400865).

Almost surely, 2^55326531140 is an apocalyptic number.

It is an amenable number.

55326531140 is an abundant number, since it is smaller than the sum of its proper divisors (60867089620).

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

55326531140 is a wasteful number, since it uses less digits than its factorization.

55326531140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188231 (or 188229 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 55326531140 in words is "fifty-five billion, three hundred twenty-six million, five hundred thirty-one thousand, one hundred forty".