125151252500 has 30 divisors (see below), whose sum is σ = 273680764434. Its totient is φ = 50060500000.

The previous prime is 125151252461. The next prime is 125151252509. The reversal of 125151252500 is 5252151521.

It can be written as a sum of positive squares in 5 ways, for example, as 16375297156 + 108775955344 = 127966^2 + 329812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125151252509) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25027751 + ... + 25032750.

Almost surely, 2^125151252500 is an apocalyptic number.

125151252500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125151252500 is an abundant number, since it is smaller than the sum of its proper divisors (148529511934).

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

125151252500 is an equidigital number, since it uses as much as digits as its factorization.

125151252500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50060525 (or 50060508 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 29.

The spelling of 125151252500 in words is "one hundred twenty-five billion, one hundred fifty-one million, two hundred fifty-two thousand, five hundred".