125007506 has 16 divisors (see below), whose sum is σ = 202133400. Its totient is φ = 57639168.

The previous prime is 125007473. The next prime is 125007523. The reversal of 125007506 is 605700521.

It can be written as a sum of positive squares in 4 ways, for example, as 55368481 + 69639025 = 7441^2 + 8345^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37100 + ... + 40328.

Almost surely, 2^125007506 is an apocalyptic number.

125007506 is a deficient number, since it is larger than the sum of its proper divisors (77125894).

125007506 is a wasteful number, since it uses less digits than its factorization.

125007506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 125007506 is about 11180.6755609847. The cubic root of 125007506 is about 500.0100077997.

The spelling of 125007506 in words is "one hundred twenty-five million, seven thousand, five hundred six".