525543317 has 4 divisors (see below), whose sum is σ = 565969740. Its totient is φ = 485116896.

The previous prime is 525543281. The next prime is 525543407. The reversal of 525543317 is 713345525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139263601 + 386279716 = 11801^2 + 19654^2 .

It is a cyclic number.

It is not a de Polignac number, because 525543317 - 2²⁸ = 257107861 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 (525543517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20213192 + ... + 20213217.

It is an arithmetic number, because the mean of its divisors is an integer number (141492435).

Almost surely, 2^525543317 is an apocalyptic number.

It is an amenable number.

525543317 is a deficient number, since it is larger than the sum of its proper divisors (40426423).

525543317 is a wasteful number, since it uses less digits than its factorization.

525543317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40426422.

The product of its digits is 63000, while the sum is 35.

The square root of 525543317 is about 22924.7315578613. The cubic root of 525543317 is about 806.9925138026.

It can be divided in two parts, 52 and 5543317, that multiplied together give a square (288252484 = 16978²).

The spelling of 525543317 in words is "five hundred twenty-five million, five hundred forty-three thousand, three hundred seventeen".