252644540705 has 16 divisors (see below), whose sum is σ = 311460012864. Its totient is φ = 196628712000.

The previous prime is 252644540693. The next prime is 252644540749. The reversal of 252644540705 is 507045446252.

It is not a de Polignac number, because 252644540705 - 2³⁴ = 235464671521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2286854 + ... + 2394783.

It is an arithmetic number, because the mean of its divisors is an integer number (19466250804).

Almost surely, 2^252644540705 is an apocalyptic number.

It is an amenable number.

252644540705 is a deficient number, since it is larger than the sum of its proper divisors (58815472159).

252644540705 is a wasteful number, since it uses less digits than its factorization.

252644540705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681936.

The product of its (nonzero) digits is 1344000, while the sum is 44.

Adding to 252644540705 its reverse (507045446252), we get a palindrome (759689986957).

The spelling of 252644540705 in words is "two hundred fifty-two billion, six hundred forty-four million, five hundred forty thousand, seven hundred five".