125400525 has 24 divisors (see below), whose sum is σ = 207677184. Its totient is φ = 66768000.

The previous prime is 125400521. The next prime is 125400529. The reversal of 125400525 is 525004521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125400521) and next prime (125400529).

It is not a de Polignac number, because 125400525 - 2² = 125400521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125400495 and 125400504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125400521) 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, 63300 + ... + 65250.

It is an arithmetic number, because the mean of its divisors is an integer number (8653216).

Almost surely, 2^125400525 is an apocalyptic number.

125400525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125400525 is a deficient number, since it is larger than the sum of its proper divisors (82276659).

125400525 is a wasteful number, since it uses less digits than its factorization.

125400525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821 (or 2816 counting only the distinct ones).

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

The square root of 125400525 is about 11198.2375845487. The cubic root of 125400525 is about 500.5334639633.

The spelling of 125400525 in words is "one hundred twenty-five million, four hundred thousand, five hundred twenty-five".