251025 has 12 divisors (see below), whose sum is σ = 415152. Its totient is φ = 133840.

The previous prime is 251003. The next prime is 251033. The reversal of 251025 is 520152.

251025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 251025 - 2⁵ = 250993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 250995 and 251013.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 251025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1599 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (34596).

2²⁵¹⁰²⁵ is an apocalyptic number.

251025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251025 is a deficient number, since it is larger than the sum of its proper divisors (164127).

251025 is a wasteful number, since it uses less digits than its factorization.

251025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360 (or 3355 counting only the distinct ones).

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

The square root of 251025 is about 501.0239515233. The cubic root of 251025 is about 63.0820297045.

Adding to 251025 its reverse (520152), we get a palindrome (771177).

The spelling of 251025 in words is "two hundred fifty-one thousand, twenty-five".