520136125 has 16 divisors (see below), whose sum is σ = 650744640. Its totient is φ = 415074000.

The previous prime is 520136101. The next prime is 520136137. The reversal of 520136125 is 521631025.

It is a de Polignac number, because none of the positive numbers 2^k-520136125 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 520136125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47410 + ... + 57340.

It is an arithmetic number, because the mean of its divisors is an integer number (40671540).

Almost surely, 2^520136125 is an apocalyptic number.

It is an amenable number.

520136125 is a deficient number, since it is larger than the sum of its proper divisors (130608515).

520136125 is an equidigital number, since it uses as much as digits as its factorization.

520136125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10365 (or 10355 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 520136125 is about 22806.4930447450. The cubic root of 520136125 is about 804.2153149924.

The spelling of 520136125 in words is "five hundred twenty million, one hundred thirty-six thousand, one hundred twenty-five".