5115781125 has 128 divisors (see below), whose sum is σ = 11641943040. Its totient is φ = 2158617600.

The previous prime is 5115781093. The next prime is 5115781133. The reversal of 5115781125 is 5211875115.

5115781125 is a `hidden beast` number, since 51 + 1 + 578 + 11 + 25 = 666.

It is not a de Polignac number, because 5115781125 - 2⁵ = 5115781093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5115781125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 298797 + ... + 315453.

It is an arithmetic number, because the mean of its divisors is an integer number (90952680).

Almost surely, 2^5115781125 is an apocalyptic number.

It is an amenable number.

5115781125 is an abundant number, since it is smaller than the sum of its proper divisors (6526161915).

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

5115781125 is a wasteful number, since it uses less digits than its factorization.

5115781125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16701 (or 16685 counting only the distinct ones).

The product of its digits is 14000, while the sum is 36.

The square root of 5115781125 is about 71524.6889192816. The cubic root of 5115781125 is about 1723.0742213839.

The spelling of 5115781125 in words is "five billion, one hundred fifteen million, seven hundred eighty-one thousand, one hundred twenty-five".