253342765 has 8 divisors (see below), whose sum is σ = 327396888. Its totient is φ = 187083840.

The previous prime is 253342759. The next prime is 253342781. The reversal of 253342765 is 567243352.

It can be written as a sum of positive squares in 4 ways, for example, as 12068676 + 241274089 = 3474^2 + 15533^2 .

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

It is not a de Polignac number, because 253342765 - 2²¹ = 251245613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948726 + ... + 1948855.

It is an arithmetic number, because the mean of its divisors is an integer number (40924611).

Almost surely, 2^253342765 is an apocalyptic number.

It is an amenable number.

253342765 is a deficient number, since it is larger than the sum of its proper divisors (74054123).

253342765 is a wasteful number, since it uses less digits than its factorization.

253342765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897599.

The product of its digits is 151200, while the sum is 37.

The square root of 253342765 is about 15916.7447991101. The cubic root of 253342765 is about 632.7558495627.

The spelling of 253342765 in words is "two hundred fifty-three million, three hundred forty-two thousand, seven hundred sixty-five".