252977505 has 16 divisors (see below), whose sum is σ = 441561024. Its totient is φ = 122655680.

The previous prime is 252977479. The next prime is 252977519. The reversal of 252977505 is 505779252.

It is a happy number.

It is not a de Polignac number, because 252977505 - 2⁶ = 252977441 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 766434 + ... + 766763.

It is an arithmetic number, because the mean of its divisors is an integer number (27597564).

Almost surely, 2^252977505 is an apocalyptic number.

It is an amenable number.

252977505 is a deficient number, since it is larger than the sum of its proper divisors (188583519).

252977505 is a wasteful number, since it uses less digits than its factorization.

252977505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533216.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 252977505 is about 15905.2665806015. The cubic root of 252977505 is about 632.4516088314.

The spelling of 252977505 in words is "two hundred fifty-two million, nine hundred seventy-seven thousand, five hundred five".