252354989 has 4 divisors (see below), whose sum is σ = 252792924. Its totient is φ = 251917056.

The previous prime is 252354983. The next prime is 252354997. The reversal of 252354989 is 989453252.

252354989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133217764 + 119137225 = 11542^2 + 10915^2 .

It is a cyclic number.

It is not a de Polignac number, because 252354989 - 2⁸ = 252354733 is a prime.

It is a super-3 number, since 3×252354989³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252354983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218102 + ... + 219255.

It is an arithmetic number, because the mean of its divisors is an integer number (63198231).

Almost surely, 2^252354989 is an apocalyptic number.

It is an amenable number.

252354989 is a deficient number, since it is larger than the sum of its proper divisors (437935).

252354989 is an equidigital number, since it uses as much as digits as its factorization.

252354989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437934.

The product of its digits is 777600, while the sum is 47.

The square root of 252354989 is about 15885.6850340173. The cubic root of 252354989 is about 631.9324129575.

The spelling of 252354989 in words is "two hundred fifty-two million, three hundred fifty-four thousand, nine hundred eighty-nine".