252342605 has 4 divisors (see below), whose sum is σ = 302811132. Its totient is φ = 201874080.

The previous prime is 252342583. The next prime is 252342617. The reversal of 252342605 is 506243252.

252342605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 135745801 + 116596804 = 11651^2 + 10798^2 .

It is a de Polignac number, because none of the positive numbers 2^k-252342605 is a prime.

It is a Duffinian 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, 25234256 + ... + 25234265.

It is an arithmetic number, because the mean of its divisors is an integer number (75702783).

Almost surely, 2^252342605 is an apocalyptic number.

It is an amenable number.

252342605 is a deficient number, since it is larger than the sum of its proper divisors (50468527).

252342605 is an equidigital number, since it uses as much as digits as its factorization.

252342605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50468526.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 252342605 is about 15885.2952443447. The cubic root of 252342605 is about 631.9220756953.

Adding to 252342605 its reverse (506243252), we get a palindrome (758585857).

The spelling of 252342605 in words is "two hundred fifty-two million, three hundred forty-two thousand, six hundred five".