252411442 has 4 divisors (see below), whose sum is σ = 378617166. Its totient is φ = 126205720.

The previous prime is 252411413. The next prime is 252411451. The reversal of 252411442 is 244114252.

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

It can be written as a sum of positive squares in only one way, i.e., 235346281 + 17065161 = 15341^2 + 4131^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63102859 + ... + 63102862.

Almost surely, 2^252411442 is an apocalyptic number.

252411442 is a deficient number, since it is larger than the sum of its proper divisors (126205724).

252411442 is a wasteful number, since it uses less digits than its factorization.

252411442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126205723.

The product of its digits is 2560, while the sum is 25.

The square root of 252411442 is about 15887.4617859493. The cubic root of 252411442 is about 631.9795315301.

Adding to 252411442 its reverse (244114252), we get a palindrome (496525694).

The spelling of 252411442 in words is "two hundred fifty-two million, four hundred eleven thousand, four hundred forty-two".