252478113 has 4 divisors (see below), whose sum is σ = 336637488. Its totient is φ = 168318740.

The previous prime is 252478111. The next prime is 252478151. The reversal of 252478113 is 311874252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252478113 - 2¹ = 252478111 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252478111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42079683 + ... + 42079688.

It is an arithmetic number, because the mean of its divisors is an integer number (84159372).

Almost surely, 2^252478113 is an apocalyptic number.

It is an amenable number.

252478113 is a deficient number, since it is larger than the sum of its proper divisors (84159375).

252478113 is an equidigital number, since it uses as much as digits as its factorization.

252478113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84159374.

The product of its digits is 13440, while the sum is 33.

The square root of 252478113 is about 15889.5598743326. The cubic root of 252478113 is about 632.0351695231.

The spelling of 252478113 in words is "two hundred fifty-two million, four hundred seventy-eight thousand, one hundred thirteen".