125220525 has 24 divisors (see below), whose sum is σ = 208421184. Its totient is φ = 66336000.

The previous prime is 125220497. The next prime is 125220539. The reversal of 125220525 is 525022521.

It is not a de Polignac number, because 125220525 - 2⁸ = 125220269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125220495 and 125220504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5797 + ... + 16853.

It is an arithmetic number, because the mean of its divisors is an integer number (8684216).

Almost surely, 2^125220525 is an apocalyptic number.

125220525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125220525 is a deficient number, since it is larger than the sum of its proper divisors (83200659).

125220525 is a wasteful number, since it uses less digits than its factorization.

125220525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221 (or 11216 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 125220525 is about 11190.1977194328. The cubic root of 125220525 is about 500.2938605914.

The spelling of 125220525 in words is "one hundred twenty-five million, two hundred twenty thousand, five hundred twenty-five".