523520125 has 8 divisors (see below), whose sum is σ = 653353272. Its totient is φ = 418816000.

The previous prime is 523520099. The next prime is 523520131. The reversal of 523520125 is 521025325.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 108868356 + 414651769 = 10434^2 + 20363^2 .

It is not a de Polignac number, because 523520125 - 2⁹ = 523519613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523520125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2093956 + ... + 2094205.

It is an arithmetic number, because the mean of its divisors is an integer number (81669159).

Almost surely, 2^523520125 is an apocalyptic number.

It is an amenable number.

523520125 is a deficient number, since it is larger than the sum of its proper divisors (129833147).

523520125 is an equidigital number, since it uses as much as digits as its factorization.

523520125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188176 (or 4188166 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 523520125 is about 22880.5621652966. The cubic root of 523520125 is about 805.9556183449.

The spelling of 523520125 in words is "five hundred twenty-three million, five hundred twenty thousand, one hundred twenty-five".