252263649658 has 4 divisors (see below), whose sum is σ = 378395474490. Its totient is φ = 126131824828.

The previous prime is 252263649643. The next prime is 252263649709. The reversal of 252263649658 is 856946362252.

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., 250223049729 + 2040599929 = 500223^2 + 45173^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63065912413 + ... + 63065912416.

Almost surely, 2^252263649658 is an apocalyptic number.

252263649658 is a deficient number, since it is larger than the sum of its proper divisors (126131824832).

252263649658 is a wasteful number, since it uses less digits than its factorization.

252263649658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126131824831.

The product of its digits is 37324800, while the sum is 58.

The spelling of 252263649658 in words is "two hundred fifty-two billion, two hundred sixty-three million, six hundred forty-nine thousand, six hundred fifty-eight".