252461305 has 8 divisors (see below), whose sum is σ = 320774472. Its totient is φ = 190088448.

The previous prime is 252461291. The next prime is 252461329. The reversal of 252461305 is 503164252.

It can be written as a sum of positive squares in 4 ways, for example, as 88134544 + 164326761 = 9388^2 + 12819^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 252461305 - 2⁵ = 252461273 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484982 + ... + 1485151.

It is an arithmetic number, because the mean of its divisors is an integer number (40096809).

Almost surely, 2^252461305 is an apocalyptic number.

It is an amenable number.

252461305 is a deficient number, since it is larger than the sum of its proper divisors (68313167).

252461305 is a wasteful number, since it uses less digits than its factorization.

252461305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970155.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 252461305 is about 15889.0309647883. The cubic root of 252461305 is about 632.0211439075.

The spelling of 252461305 in words is "two hundred fifty-two million, four hundred sixty-one thousand, three hundred five".