252272989 has 2 divisors, whose sum is σ = 252272990. Its totient is φ = 252272988.

The previous prime is 252272957. The next prime is 252273029. The reversal of 252272989 is 989272252.

252272989 = T₁₂₉₆₇ + T₁₂₉₆₈ + T₁₂₉₆₉.

252272989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177156100 + 75116889 = 13310^2 + 8667^2 .

It is a cyclic number.

It is not a de Polignac number, because 252272989 - 2⁵ = 252272957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252272929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126136494 + 126136495.

It is an arithmetic number, because the mean of its divisors is an integer number (126136495).

Almost surely, 2^252272989 is an apocalyptic number.

252272989 is the 12969-th centered triangular number.

It is an amenable number.

252272989 is a deficient number, since it is larger than the sum of its proper divisors (1).

252272989 is an equidigital number, since it uses as much as digits as its factorization.

252272989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 252272989 is about 15883.1038843168. The cubic root of 252272989 is about 631.8639590285.

The spelling of 252272989 in words is "two hundred fifty-two million, two hundred seventy-two thousand, nine hundred eighty-nine".