252515105806 has 8 divisors (see below), whose sum is σ = 384107485104. Its totient is φ = 124479277440.

The previous prime is 252515105749. The next prime is 252515105831. The reversal of 252515105806 is 608501515252.

252515105806 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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889137555 + ... + 889137838.

It is an arithmetic number, because the mean of its divisors is an integer number (48013435638).

Almost surely, 2^252515105806 is an apocalyptic number.

252515105806 is a deficient number, since it is larger than the sum of its proper divisors (131592379298).

252515105806 is a wasteful number, since it uses less digits than its factorization.

252515105806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778275466.

The product of its (nonzero) digits is 120000, while the sum is 40.

The spelling of 252515105806 in words is "two hundred fifty-two billion, five hundred fifteen million, one hundred five thousand, eight hundred six".