252649 has 4 divisors (see below), whose sum is σ = 253764. Its totient is φ = 251536.

The previous prime is 252641. The next prime is 252667. The reversal of 252649 is 946252.

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 can be written as a sum of positive squares in 2 ways, for example, as 59049 + 193600 = 243^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 252649 - 2³ = 252641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252641) 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, 82 + ... + 715.

It is an arithmetic number, because the mean of its divisors is an integer number (63441).

2²⁵²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

252649 is a deficient number, since it is larger than the sum of its proper divisors (1115).

252649 is an equidigital number, since it uses as much as digits as its factorization.

252649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its digits is 4320, while the sum is 28.

The square root of 252649 is about 502.6420197317. The cubic root of 252649 is about 63.2177732687.

The spelling of 252649 in words is "two hundred fifty-two thousand, six hundred forty-nine".