125817751052 has 12 divisors (see below), whose sum is σ = 251635502160. Its totient is φ = 53921893296.

The previous prime is 125817751051. The next prime is 125817751121. The reversal of 125817751052 is 250157718521.

125817751052 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 125817750994 and 125817751012.

It is not an unprimeable number, because it can be changed into a prime (125817751051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246745527 + ... + 2246745582.

It is an arithmetic number, because the mean of its divisors is an integer number (20969625180).

Almost surely, 2^125817751052 is an apocalyptic number.

It is an amenable number.

125817751052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125817751052 is a wasteful number, since it uses less digits than its factorization.

125817751052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493491120 (or 4493491118 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 44.

The spelling of 125817751052 in words is "one hundred twenty-five billion, eight hundred seventeen million, seven hundred fifty-one thousand, fifty-two".