2251355311125 has 96 divisors (see below), whose sum is σ = 4190674255872. Its totient is φ = 1161625536000.

The previous prime is 2251355311123. The next prime is 2251355311157. The reversal of 2251355311125 is 5211135531522.

2251355311125 is a `hidden beast` number, since 2 + 2 + 5 + 1 + 3 + 5 + 531 + 112 + 5 = 666.

It is not a de Polignac number, because 2251355311125 - 2¹ = 2251355311123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2251355311125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251355311123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 138340989 + ... + 138357261.

It is an arithmetic number, because the mean of its divisors is an integer number (43652856832).

Almost surely, 2^{2251355311125} is an apocalyptic number.

2251355311125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2251355311125 is a deficient number, since it is larger than the sum of its proper divisors (1939318944747).

2251355311125 is a wasteful number, since it uses less digits than its factorization.

2251355311125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20292 (or 20279 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The spelling of 2251355311125 in words is "two trillion, two hundred fifty-one billion, three hundred fifty-five million, three hundred eleven thousand, one hundred twenty-five".