53551163526172 has 96 divisors (see below), whose sum is σ = 107896413284352. Its totient is φ = 23036585266176.

The previous prime is 53551163526079. The next prime is 53551163526173. The reversal of 53551163526172 is 27162536115535.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53551163526173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274491453 + ... + 274686475.

It is an arithmetic number, because the mean of its divisors is an integer number (1123920971712).

Almost surely, 2^{53551163526172} is an apocalyptic number.

53551163526172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53551163526172 is an abundant number, since it is smaller than the sum of its proper divisors (54345249758180).

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

53551163526172 is a wasteful number, since it uses less digits than its factorization.

53551163526172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198067 (or 198065 counting only the distinct ones).

The product of its digits is 5670000, while the sum is 52.

The spelling of 53551163526172 in words is "fifty-three trillion, five hundred fifty-one billion, one hundred sixty-three million, five hundred twenty-six thousand, one hundred seventy-two".