125815307580 has 72 divisors (see below), whose sum is σ = 381768660000. Its totient is φ = 33539417472.

The previous prime is 125815307573. The next prime is 125815307587. The reversal of 125815307580 is 85703518521.

125815307580 is a `hidden beast` number, since 1 + 2 + 58 + 15 + 3 + 0 + 7 + 580 = 666.

It is an interprime number because it is at equal distance from previous prime (125815307573) and next prime (125815307587).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125815307587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423286 + ... + 656354.

It is an arithmetic number, because the mean of its divisors is an integer number (5302342500).

Almost surely, 2^125815307580 is an apocalyptic number.

125815307580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125815307580 is an abundant number, since it is smaller than the sum of its proper divisors (255953352420).

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

125815307580 is a wasteful number, since it uses less digits than its factorization.

125815307580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236083 (or 236078 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The spelling of 125815307580 in words is "one hundred twenty-five billion, eight hundred fifteen million, three hundred seven thousand, five hundred eighty".