525015025 has 6 divisors (see below), whose sum is σ = 651018662. Its totient is φ = 420012000.

The previous prime is 525014989. The next prime is 525015077. The reversal of 525015025 is 520510525.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2298256 + 522716769 = 1516^2 + 22863^2 .

It is not a de Polignac number, because 525015025 - 2¹¹ = 525012977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 21000601 = 525015025 / (5 + 2 + 5 + 0 + 1 + 5 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10500276 + ... + 10500325.

Almost surely, 2^525015025 is an apocalyptic number.

It is an amenable number.

525015025 is a deficient number, since it is larger than the sum of its proper divisors (126003637).

525015025 is a wasteful number, since it uses less digits than its factorization.

525015025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21000611 (or 21000606 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 525015025 is about 22913.2063448135. The cubic root of 525015025 is about 806.7220187374.

The spelling of 525015025 in words is "five hundred twenty-five million, fifteen thousand, twenty-five".