523502125 has 8 divisors (see below), whose sum is σ = 653330808. Its totient is φ = 418801600.

The previous prime is 523502123. The next prime is 523502129. The reversal of 523502125 is 521205325.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16621929 + 506880196 = 4077^2 + 22514^2 .

It is not a de Polignac number, because 523502125 - 2¹ = 523502123 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 523502125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523502123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2093884 + ... + 2094133.

It is an arithmetic number, because the mean of its divisors is an integer number (81666351).

Almost surely, 2^523502125 is an apocalyptic number.

It is an amenable number.

523502125 is a deficient number, since it is larger than the sum of its proper divisors (129828683).

523502125 is an equidigital number, since it uses as much as digits as its factorization.

523502125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188032 (or 4188022 counting only the distinct ones).

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

The square root of 523502125 is about 22880.1688149367. The cubic root of 523502125 is about 805.9463812804.

The spelling of 523502125 in words is "five hundred twenty-three million, five hundred two thousand, one hundred twenty-five".