252491826 has 16 divisors (see below), whose sum is σ = 506155104. Its totient is φ = 83968704.

The previous prime is 252491791. The next prime is 252491879. The reversal of 252491826 is 628194252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45996 + ... + 51191.

It is an arithmetic number, because the mean of its divisors is an integer number (31634694).

Almost surely, 2^252491826 is an apocalyptic number.

252491826 is an abundant number, since it is smaller than the sum of its proper divisors (253663278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252491826 is a wasteful number, since it uses less digits than its factorization.

252491826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97625.

The product of its digits is 69120, while the sum is 39.

The square root of 252491826 is about 15889.9913782230. The cubic root of 252491826 is about 632.0466120217.

The spelling of 252491826 in words is "two hundred fifty-two million, four hundred ninety-one thousand, eight hundred twenty-six".