125642825 has 24 divisors (see below), whose sum is σ = 194243520. Its totient is φ = 78321600.

The previous prime is 125642789. The next prime is 125642831. The reversal of 125642825 is 528246521.

It is not a de Polignac number, because 125642825 - 2¹² = 125638729 is a prime.

It is a super-2 number, since 2×125642825² = 31572238947961250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 30710 + ... + 34559.

It is an arithmetic number, because the mean of its divisors is an integer number (8093480).

Almost surely, 2^125642825 is an apocalyptic number.

It is an amenable number.

125642825 is a deficient number, since it is larger than the sum of its proper divisors (68600695).

125642825 is a wasteful number, since it uses less digits than its factorization.

125642825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65297 (or 65292 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 125642825 is about 11209.0510303058. The cubic root of 125642825 is about 500.8556349425.

The spelling of 125642825 in words is "one hundred twenty-five million, six hundred forty-two thousand, eight hundred twenty-five".