525258427 has 4 divisors (see below), whose sum is σ = 525760200. Its totient is φ = 524756656.

The previous prime is 525258403. The next prime is 525258431. The reversal of 525258427 is 724852525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525258427 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 525258427.

It is not an unprimeable number, because it can be changed into a prime (525258457) 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, 249313 + ... + 251410.

It is an arithmetic number, because the mean of its divisors is an integer number (131440050).

Almost surely, 2^525258427 is an apocalyptic number.

525258427 is a deficient number, since it is larger than the sum of its proper divisors (501773).

525258427 is a wasteful number, since it uses less digits than its factorization.

525258427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501772.

The product of its digits is 224000, while the sum is 40.

The square root of 525258427 is about 22918.5171204422. The cubic root of 525258427 is about 806.8466674978.

The spelling of 525258427 in words is "five hundred twenty-five million, two hundred fifty-eight thousand, four hundred twenty-seven".