55140543250 has 32 divisors (see below), whose sum is σ = 111163341744. Its totient is φ = 20359584000.

The previous prime is 55140543223. The next prime is 55140543253. The reversal of 55140543250 is 5234504155.

55140543250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1197229201 + 53943314049 = 34601^2 + 232257^2 .

It is not an unprimeable number, because it can be changed into a prime (55140543253) 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, 8479911 + ... + 8486410.

Almost surely, 2^55140543250 is an apocalyptic number.

55140543250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55140543250 is an abundant number, since it is smaller than the sum of its proper divisors (56022798494).

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

55140543250 is a wasteful number, since it uses less digits than its factorization.

55140543250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16966351 (or 16966341 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 55140543250 in words is "fifty-five billion, one hundred forty million, five hundred forty-three thousand, two hundred fifty".