525878125 has 12 divisors (see below), whose sum is σ = 657309492. Its totient is φ = 420700000.

The previous prime is 525878117. The next prime is 525878131. The reversal of 525878125 is 521878525.

It can be written as a sum of positive squares in 6 ways, for example, as 358382761 + 167495364 = 18931^2 + 12942^2 .

It is not a de Polignac number, because 525878125 - 2³ = 525878117 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81016 + ... + 87265.

It is an arithmetic number, because the mean of its divisors is an integer number (54775791).

Almost surely, 2^525878125 is an apocalyptic number.

It is an amenable number.

525878125 is a deficient number, since it is larger than the sum of its proper divisors (131431367).

525878125 is an frugal number, since it uses more digits than its factorization.

525878125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168306 (or 168286 counting only the distinct ones).

The product of its digits is 224000, while the sum is 43.

The square root of 525878125 is about 22932.0327271701. The cubic root of 525878125 is about 807.1638477250.

It can be divided in two parts, 5 and 25878125, that multiplied together give a square (129390625 = 11375²).

The spelling of 525878125 in words is "five hundred twenty-five million, eight hundred seventy-eight thousand, one hundred twenty-five".