252223450 has 24 divisors (see below), whose sum is σ = 481818492. Its totient is φ = 98161920.

The previous prime is 252223427. The next prime is 252223457. The reversal of 252223450 is 54322252.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 109683729 + 142539721 = 10473^2 + 11939^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (252223457) 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, 66319 + ... + 70018.

Almost surely, 2^252223450 is an apocalyptic number.

252223450 is a deficient number, since it is larger than the sum of its proper divisors (229595042).

252223450 is a wasteful number, since it uses less digits than its factorization.

252223450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136386 (or 136381 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 252223450 is about 15881.5443203739. The cubic root of 252223450 is about 631.8225964845.

The spelling of 252223450 in words is "two hundred fifty-two million, two hundred twenty-three thousand, four hundred fifty".