25102 has 16 divisors (see below), whose sum is σ = 47232. Its totient is φ = 9720.

The previous prime is 25097. The next prime is 25111. The reversal of 25102 is 20152.

25102 is nontrivially palindromic in base 8.

It is a super-2 number, since 2×25102² = 1260220808, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 235.

It is an arithmetic number, because the mean of its divisors is an integer number (2952).

2²⁵¹⁰² is an apocalyptic number.

25102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25102 is a deficient number, since it is larger than the sum of its proper divisors (22130).

25102 is a wasteful number, since it uses less digits than its factorization.

25102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 25102 is about 158.4361069958. The cubic root of 25102 is about 29.2798900630.

Adding to 25102 its reverse (20152), we get a palindrome (45254).

Subtracting from 25102 its reverse (20152), we obtain a triangular number (4950 = T₉₉).

The spelling of 25102 in words is "twenty-five thousand, one hundred two".