525189013 has 4 divisors (see below), whose sum is σ = 552830560. Its totient is φ = 497547468.

The previous prime is 525189001. The next prime is 525189019. The reversal of 525189013 is 310981525.

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 a de Polignac number, because none of the positive numbers 2^k-525189013 is a prime.

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 525189013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525189019) 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, 13820745 + ... + 13820782.

It is an arithmetic number, because the mean of its divisors is an integer number (138207640).

Almost surely, 2^525189013 is an apocalyptic number.

It is an amenable number.

525189013 is a deficient number, since it is larger than the sum of its proper divisors (27641547).

525189013 is a wasteful number, since it uses less digits than its factorization.

525189013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27641546.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 525189013 is about 22917.0027054150. The cubic root of 525189013 is about 806.8111237737.

The spelling of 525189013 in words is "five hundred twenty-five million, one hundred eighty-nine thousand, thirteen".