53172868500 has 96 divisors (see below), whose sum is σ = 172043813760. Its totient is φ = 14179428000.

The previous prime is 53172868493. The next prime is 53172868517. The reversal of 53172868500 is 586827135.

53172868500 is a `hidden beast` number, since 5 + 317 + 286 + 8 + 50 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1955866 + ... + 1982865.

It is an arithmetic number, because the mean of its divisors is an integer number (1792123060).

Almost surely, 2^53172868500 is an apocalyptic number.

53172868500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53172868500 is an abundant number, since it is smaller than the sum of its proper divisors (118870945260).

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

53172868500 is a wasteful number, since it uses less digits than its factorization.

53172868500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938759 (or 3938741 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 53172868500 in words is "fifty-three billion, one hundred seventy-two million, eight hundred sixty-eight thousand, five hundred".