252242402 has 4 divisors (see below), whose sum is σ = 378363606. Its totient is φ = 126121200.

The previous prime is 252242387. The next prime is 252242411. The reversal of 252242402 is 204242252.

252242402 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 only one way, i.e., 185477161 + 66765241 = 13619^2 + 8171^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63060599 + ... + 63060602.

Almost surely, 2^252242402 is an apocalyptic number.

252242402 is a deficient number, since it is larger than the sum of its proper divisors (126121204).

252242402 is a wasteful number, since it uses less digits than its factorization.

252242402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126121203.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 252242402 is about 15882.1409765812. The cubic root of 252242402 is about 631.8384210796.

Adding to 252242402 its reverse (204242252), we get a palindrome (456484654).

The spelling of 252242402 in words is "two hundred fifty-two million, two hundred forty-two thousand, four hundred two".