252149766 has 32 divisors (see below), whose sum is σ = 553810176. Its totient is φ = 75900000.

The previous prime is 252149699. The next prime is 252149771. The reversal of 252149766 is 667941252.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2685 + ... + 22616.

It is an arithmetic number, because the mean of its divisors is an integer number (17306568).

Almost surely, 2^252149766 is an apocalyptic number.

252149766 is an abundant number, since it is smaller than the sum of its proper divisors (301660410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252149766 is a wasteful number, since it uses less digits than its factorization.

252149766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25468.

The product of its digits is 181440, while the sum is 42.

The square root of 252149766 is about 15879.2243513340. The cubic root of 252149766 is about 631.7610640742.

It can be divided in two parts, 25214 and 9766, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 252149766 in words is "two hundred fifty-two million, one hundred forty-nine thousand, seven hundred sixty-six".