525242891 has 8 divisors (see below), whose sum is σ = 528768000. Its totient is φ = 521729320.

The previous prime is 525242857. The next prime is 525242899. The reversal of 525242891 is 198242525.

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 525242891 - 2¹⁰ = 525241867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525242899) 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, 100460 + ... + 105558.

It is an arithmetic number, because the mean of its divisors is an integer number (66096000).

Almost surely, 2^525242891 is an apocalyptic number.

525242891 is a deficient number, since it is larger than the sum of its proper divisors (3525109).

525242891 is a wasteful number, since it uses less digits than its factorization.

525242891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769.

The product of its digits is 57600, while the sum is 38.

The square root of 525242891 is about 22918.1781780315. The cubic root of 525242891 is about 806.8387124971.

The spelling of 525242891 in words is "five hundred twenty-five million, two hundred forty-two thousand, eight hundred ninety-one".