252740505 has 16 divisors (see below), whose sum is σ = 407102400. Its totient is φ = 133889088.

The previous prime is 252740447. The next prime is 252740519. The reversal of 252740505 is 505047252.

It is not a de Polignac number, because 252740505 - 2¹¹ = 252738457 is a prime.

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, 54307 + ... + 58776.

It is an arithmetic number, because the mean of its divisors is an integer number (25443900).

Almost surely, 2^252740505 is an apocalyptic number.

It is an amenable number.

252740505 is a deficient number, since it is larger than the sum of its proper divisors (154361895).

252740505 is a wasteful number, since it uses less digits than its factorization.

252740505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113240.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 252740505 is about 15897.8144724361. The cubic root of 252740505 is about 632.2540446729.

Adding to 252740505 its reverse (505047252), we get a palindrome (757787757).

The spelling of 252740505 in words is "two hundred fifty-two million, seven hundred forty thousand, five hundred five".