53155551625 has 16 divisors (see below), whose sum is σ = 72368869248. Its totient is φ = 38658582000.

The previous prime is 53155551607. The next prime is 53155551667. The reversal of 53155551625 is 52615555135.

It is a de Polignac number, because none of the positive numbers 2^k-53155551625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19327917 + ... + 19330666.

It is an arithmetic number, because the mean of its divisors is an integer number (4523054328).

Almost surely, 2^53155551625 is an apocalyptic number.

53155551625 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53155551625 is a deficient number, since it is larger than the sum of its proper divisors (19213317623).

53155551625 is a wasteful number, since it uses less digits than its factorization.

53155551625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38658609 (or 38658599 counting only the distinct ones).

The product of its digits is 562500, while the sum is 43.

The spelling of 53155551625 in words is "fifty-three billion, one hundred fifty-five million, five hundred fifty-one thousand, six hundred twenty-five".