525791 has 8 divisors (see below), whose sum is σ = 620544. Its totient is φ = 435960.

The previous prime is 525781. The next prime is 525809. The reversal of 525791 is 197525.

525791 = T₉₈ + T₉₉ + ... + T₁₅₉.

525791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 525791 - 2⁶ = 525727 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525791.

It is not an unprimeable number, because it can be changed into a prime (525731) 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, 995 + ... + 1428.

It is an arithmetic number, because the mean of its divisors is an integer number (77568).

2⁵²⁵⁷⁹¹ is an apocalyptic number.

525791 is a deficient number, since it is larger than the sum of its proper divisors (94753).

525791 is a wasteful number, since it uses less digits than its factorization.

525791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461.

The product of its digits is 3150, while the sum is 29.

The square root of 525791 is about 725.1144737212. The cubic root of 525791 is about 80.7119269567.

The spelling of 525791 in words is "five hundred twenty-five thousand, seven hundred ninety-one".