252479111 has 4 divisors (see below), whose sum is σ = 255521112. Its totient is φ = 249437112.

The previous prime is 252479089. The next prime is 252479137. The reversal of 252479111 is 111974252.

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

It is a cyclic number.

It is not a de Polignac number, because 252479111 - 2¹⁸ = 252216967 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 (252479611) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1520876 + ... + 1521041.

It is an arithmetic number, because the mean of its divisors is an integer number (63880278).

Almost surely, 2^252479111 is an apocalyptic number.

252479111 is a deficient number, since it is larger than the sum of its proper divisors (3042001).

252479111 is an equidigital number, since it uses as much as digits as its factorization.

252479111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042000.

The product of its digits is 5040, while the sum is 32.

The square root of 252479111 is about 15889.5912785698. The cubic root of 252479111 is about 632.0360022953.

The spelling of 252479111 in words is "two hundred fifty-two million, four hundred seventy-nine thousand, one hundred eleven".