252551 has 4 divisors (see below), whose sum is σ = 271992. Its totient is φ = 233112.

The previous prime is 252541. The next prime is 252559. The reversal of 252551 is 155252.

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

It is a cyclic number.

It is not a de Polignac number, because 252551 - 2¹⁰ = 251527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9701 + ... + 9726.

It is an arithmetic number, because the mean of its divisors is an integer number (67998).

2²⁵²⁵⁵¹ is an apocalyptic number.

252551 is a deficient number, since it is larger than the sum of its proper divisors (19441).

252551 is a wasteful number, since it uses less digits than its factorization.

252551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19440.

The product of its digits is 500, while the sum is 20.

The square root of 252551 is about 502.5445253905. The cubic root of 252551 is about 63.2095983659.

The spelling of 252551 in words is "two hundred fifty-two thousand, five hundred fifty-one".