525839997 has 8 divisors (see below), whose sum is σ = 701381344. Its totient is φ = 350429328.

The previous prime is 525839981. The next prime is 525840001. The reversal of 525839997 is 799938525.

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

It is not a de Polignac number, because 525839997 - 2⁴ = 525839981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525839927) 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, 22858 + ... + 39675.

It is an arithmetic number, because the mean of its divisors is an integer number (87672668).

Almost surely, 2^525839997 is an apocalyptic number.

It is an amenable number.

525839997 is a deficient number, since it is larger than the sum of its proper divisors (175541347).

525839997 is a wasteful number, since it uses less digits than its factorization.

525839997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65339.

The product of its digits is 6123600, while the sum is 57.

The square root of 525839997 is about 22931.2013858847. The cubic root of 525839997 is about 807.1443398546.

The spelling of 525839997 in words is "five hundred twenty-five million, eight hundred thirty-nine thousand, nine hundred ninety-seven".