125210525 has 24 divisors (see below), whose sum is σ = 179345664. Its totient is φ = 85702400.

The previous prime is 125210521. The next prime is 125210531. The reversal of 125210525 is 525012521.

It is not a de Polignac number, because 125210525 - 2² = 125210521 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125210525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125210521) 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, 8717 + ... + 18066.

It is an arithmetic number, because the mean of its divisors is an integer number (7472736).

Almost surely, 2^125210525 is an apocalyptic number.

It is an amenable number.

125210525 is a deficient number, since it is larger than the sum of its proper divisors (54135139).

125210525 is a wasteful number, since it uses less digits than its factorization.

125210525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26821 (or 26816 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 125210525 is about 11189.7508908822. The cubic root of 125210525 is about 500.2805425623.

The spelling of 125210525 in words is "one hundred twenty-five million, two hundred ten thousand, five hundred twenty-five".