125415525 has 24 divisors (see below), whose sum is σ = 208693984. Its totient is φ = 66456000.

The previous prime is 125415503. The next prime is 125415529. The reversal of 125415525 is 525514521.

It is not a de Polignac number, because 125415525 - 2⁶ = 125415461 is a prime.

It is a super-2 number, since 2×125415525² = 31458107822051250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125415492 and 125415501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125415529) 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, 6450 + ... + 17100.

Almost surely, 2^125415525 is an apocalyptic number.

125415525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125415525 is a deficient number, since it is larger than the sum of its proper divisors (83278459).

125415525 is a wasteful number, since it uses less digits than its factorization.

125415525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10821 (or 10816 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 125415525 is about 11198.9073127694. The cubic root of 125415525 is about 500.5534205587.

The spelling of 125415525 in words is "one hundred twenty-five million, four hundred fifteen thousand, five hundred twenty-five".