252641416 has 8 divisors (see below), whose sum is σ = 473702670. Its totient is φ = 126320704.

The previous prime is 252641381. The next prime is 252641503. The reversal of 252641416 is 614146252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 238578916 + 14062500 = 15446^2 + 3750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15790081 + ... + 15790096.

Almost surely, 2^252641416 is an apocalyptic number.

It is an amenable number.

252641416 is a deficient number, since it is larger than the sum of its proper divisors (221061254).

252641416 is a wasteful number, since it uses less digits than its factorization.

252641416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31580183 (or 31580179 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 252641416 is about 15894.6977322628. The cubic root of 252641416 is about 632.1714070676.

Adding to 252641416 its reverse (614146252), we get a palindrome (866787668).

The spelling of 252641416 in words is "two hundred fifty-two million, six hundred forty-one thousand, four hundred sixteen".