252771485 has 4 divisors (see below), whose sum is σ = 303325788. Its totient is φ = 202217184.

The previous prime is 252771473. The next prime is 252771509. The reversal of 252771485 is 584177252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143736121 + 109035364 = 11989^2 + 10442^2 .

It is a cyclic number.

It is not a de Polignac number, because 252771485 - 2¹⁶ = 252705949 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 25277144 + ... + 25277153.

It is an arithmetic number, because the mean of its divisors is an integer number (75831447).

Almost surely, 2^252771485 is an apocalyptic number.

It is an amenable number.

252771485 is a deficient number, since it is larger than the sum of its proper divisors (50554303).

252771485 is an equidigital number, since it uses as much as digits as its factorization.

252771485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50554302.

The product of its digits is 156800, while the sum is 41.

The square root of 252771485 is about 15898.7887903450. The cubic root of 252771485 is about 632.2798767413.

It can be divided in two parts, 25277 and 1485, that added together give a palindrome (26762).

The spelling of 252771485 in words is "two hundred fifty-two million, seven hundred seventy-one thousand, four hundred eighty-five".