252115454450 has 24 divisors (see below), whose sum is σ = 496519143732. Its totient is φ = 94914053120.

The previous prime is 252115454419. The next prime is 252115454453. The reversal of 252115454450 is 54454511252.

It can be written as a sum of positive squares in 6 ways, for example, as 54792041929 + 197323412521 = 234077^2 + 444211^2 .

It is not an unprimeable number, because it can be changed into a prime (252115454453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148302359 + ... + 148304058.

Almost surely, 2^252115454450 is an apocalyptic number.

252115454450 is a deficient number, since it is larger than the sum of its proper divisors (244403689282).

252115454450 is a wasteful number, since it uses less digits than its factorization.

252115454450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296606446 (or 296606441 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 252115454450 in words is "two hundred fifty-two billion, one hundred fifteen million, four hundred fifty-four thousand, four hundred fifty".