252252049009 has 3 divisors (see below), whose sum is σ = 252252551257. Its totient is φ = 252251546762.

The previous prime is 252252048967. The next prime is 252252049037. The reversal of 252252049009 is 900940252252.

The square root of 252252049009 is 502247.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 252252049009 - 2¹⁷ = 252251917937 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252252049069) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 251124 + ... + 753370.

Almost surely, 2^252252049009 is an apocalyptic number.

252252049009 is the 502247-th square number.

252252049009 is the 251124-th centered octagonal number.

It is an amenable number.

252252049009 is a deficient number, since it is larger than the sum of its proper divisors (502248).

252252049009 is an frugal number, since it uses more digits than its factorization.

252252049009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004494 (or 502247 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 252252049009 in words is "two hundred fifty-two billion, two hundred fifty-two million, forty-nine thousand, nine".