525235513 has 4 divisors (see below), whose sum is σ = 572984208. Its totient is φ = 477486820.

The previous prime is 525235507. The next prime is 525235517. The reversal of 525235513 is 315532525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525235513 - 2⁹ = 525235001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525235517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23874331 + ... + 23874352.

It is an arithmetic number, because the mean of its divisors is an integer number (143246052).

Almost surely, 2^525235513 is an apocalyptic number.

It is an amenable number.

525235513 is a deficient number, since it is larger than the sum of its proper divisors (47748695).

525235513 is a wasteful number, since it uses less digits than its factorization.

525235513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47748694.

The product of its digits is 22500, while the sum is 31.

The square root of 525235513 is about 22918.0172135375. The cubic root of 525235513 is about 806.8349346361.

The spelling of 525235513 in words is "five hundred twenty-five million, two hundred thirty-five thousand, five hundred thirteen".