525242345 has 12 divisors (see below), whose sum is σ = 652779660. Its totient is φ = 405701184.

The previous prime is 525242339. The next prime is 525242357. The reversal of 525242345 is 543242525.

It can be written as a sum of positive squares in 6 ways, for example, as 56130064 + 469112281 = 7492^2 + 21659^2 .

It is a de Polignac number, because none of the positive numbers 2^k-525242345 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58250 + ... + 66659.

It is an arithmetic number, because the mean of its divisors is an integer number (54398305).

Almost surely, 2^525242345 is an apocalyptic number.

It is an amenable number.

525242345 is a deficient number, since it is larger than the sum of its proper divisors (127537315).

525242345 is a wasteful number, since it uses less digits than its factorization.

525242345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124972 (or 124943 counting only the distinct ones).

The product of its digits is 48000, while the sum is 32.

The square root of 525242345 is about 22918.1662660868. The cubic root of 525242345 is about 806.8384329223.

The spelling of 525242345 in words is "five hundred twenty-five million, two hundred forty-two thousand, three hundred forty-five".