252806459 has 8 divisors (see below), whose sum is σ = 260224608. Its totient is φ = 245419200.

The previous prime is 252806453. The next prime is 252806471. The reversal of 252806459 is 954608252.

252806459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252806459 is a prime.

It is a super-2 number, since 2×252806459² = 127822211424237362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252806453) 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, 9434 + ... + 24384.

It is an arithmetic number, because the mean of its divisors is an integer number (32528076).

Almost surely, 2^252806459 is an apocalyptic number.

252806459 is a deficient number, since it is larger than the sum of its proper divisors (7418149).

252806459 is a wasteful number, since it uses less digits than its factorization.

252806459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15445.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 252806459 is about 15899.8886474088. Note that the first 3 decimals coincide. The cubic root of 252806459 is about 632.3090365924.

The spelling of 252806459 in words is "two hundred fifty-two million, eight hundred six thousand, four hundred fifty-nine".