251496 has 48 divisors (see below), whose sum is σ = 780000. Its totient is φ = 71712.

The previous prime is 251491. The next prime is 251501. The reversal of 251496 is 694152.

It is an interprime number because it is at equal distance from previous prime (251491) and next prime (251501).

It is not an unprimeable number, because it can be changed into a prime (251491) by changing a digit.

251496 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255 + ... + 753.

It is an arithmetic number, because the mean of its divisors is an integer number (16250).

2²⁵¹⁴⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 251496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390000).

251496 is an abundant number, since it is smaller than the sum of its proper divisors (528504).

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

251496 is a wasteful number, since it uses less digits than its factorization.

251496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 511 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 251496 is about 501.4937686552. The cubic root of 251496 is about 63.1214588086.

It can be divided in two parts, 251 and 496, that added together give a palindrome (747).

The spelling of 251496 in words is "two hundred fifty-one thousand, four hundred ninety-six".