53611121210625 has 80 divisors (see below), whose sum is σ = 108270638055360. Its totient is φ = 25993270800000.

The previous prime is 53611121210623. The next prime is 53611121210629. The reversal of 53611121210625 is 52601212111635.

53611121210625 is a `hidden beast` number, since 5 + 3 + 6 + 1 + 1 + 1 + 2 + 1 + 21 + 0 + 625 = 666.

It is not a de Polignac number, because 53611121210625 - 2¹ = 53611121210623 is a prime.

It is a super-2 number, since 2×53611121210625² (a number of 28 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 53611121210625.

It is not an unprimeable number, because it can be changed into a prime (53611121210623) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 144221436 + ... + 144592685.

It is an arithmetic number, because the mean of its divisors is an integer number (1353382975692).

Almost surely, 2^{53611121210625} is an apocalyptic number.

53611121210625 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53611121210625 is an abundant number, since it is smaller than the sum of its proper divisors (54659516844735).

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

53611121210625 is a wasteful number, since it uses less digits than its factorization.

53611121210625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288814161 (or 288814140 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 53611121210625 in words is "fifty-three trillion, six hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, six hundred twenty-five".