525025503 has 8 divisors (see below), whose sum is σ = 777815600. Its totient is φ = 350016984.

The previous prime is 525025477. The next prime is 525025559. The reversal of 525025503 is 305520525.

It is not a de Polignac number, because 525025503 - 2²⁶ = 457916639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 19445389 = 525025503 / (5 + 2 + 5 + 0 + 2 + 5 + 5 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525025583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9722668 + ... + 9722721.

It is an arithmetic number, because the mean of its divisors is an integer number (97226950).

Almost surely, 2^525025503 is an apocalyptic number.

525025503 is a deficient number, since it is larger than the sum of its proper divisors (252790097).

525025503 is a wasteful number, since it uses less digits than its factorization.

525025503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19445398 (or 19445392 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 525025503 is about 22913.4349891063. The cubic root of 525025503 is about 806.7273854264.

The spelling of 525025503 in words is "five hundred twenty-five million, twenty-five thousand, five hundred three".