525139039 has 8 divisors (see below), whose sum is σ = 556731008. Its totient is φ = 494462880.

The previous prime is 525139019. The next prime is 525139049. The reversal of 525139039 is 930931525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525139039 - 2⁵ = 525139007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 525138989 and 525139007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525139009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227772 + ... + 230065.

It is an arithmetic number, because the mean of its divisors is an integer number (69591376).

Almost surely, 2^525139039 is an apocalyptic number.

525139039 is a deficient number, since it is larger than the sum of its proper divisors (31591969).

525139039 is a wasteful number, since it uses less digits than its factorization.

525139039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457905.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 525139039 is about 22915.9123536463. The cubic root of 525139039 is about 806.7855324424.

The spelling of 525139039 in words is "five hundred twenty-five million, one hundred thirty-nine thousand, thirty-nine".