252051566 has 16 divisors (see below), whose sum is σ = 410371584. Its totient is φ = 115413984.

The previous prime is 252051539. The next prime is 252051577. The reversal of 252051566 is 665150252.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34865 + ... + 41468.

It is an arithmetic number, because the mean of its divisors is an integer number (25648224).

Almost surely, 2^252051566 is an apocalyptic number.

252051566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

252051566 is a deficient number, since it is larger than the sum of its proper divisors (158320018).

252051566 is a wasteful number, since it uses less digits than its factorization.

252051566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76475.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 252051566 is about 15876.1319596431. The cubic root of 252051566 is about 631.6790400811.

The spelling of 252051566 in words is "two hundred fifty-two million, fifty-one thousand, five hundred sixty-six".