251052 has 12 divisors (see below), whose sum is σ = 585816. Its totient is φ = 83680.

The previous prime is 251051. The next prime is 251057. The reversal of 251052 is 250152.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (251051) 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, 10449 + ... + 10472.

It is an arithmetic number, because the mean of its divisors is an integer number (48818).

2²⁵¹⁰⁵² is an apocalyptic number.

It is an amenable number.

251052 is an abundant number, since it is smaller than the sum of its proper divisors (334764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251052 is a wasteful number, since it uses less digits than its factorization.

251052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20928 (or 20926 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 251052 is about 501.0508956184. The cubic root of 251052 is about 63.0842913036.

Adding to 251052 its product of nonzero digits (100), we get a palindrome (251152).

Subtracting from 251052 its reverse (250152), we obtain a square (900 = 30²).

The spelling of 251052 in words is "two hundred fifty-one thousand, fifty-two".