25155156 has 48 divisors (see below), whose sum is σ = 63814464. Its totient is φ = 7666176.

The previous prime is 25155149. The next prime is 25155157. The reversal of 25155156 is 65155152.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

25155156 is a Rhonda number in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25155157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16915 + ... + 18341.

It is an arithmetic number, because the mean of its divisors is an integer number (1329468).

Almost surely, 2^25155156 is an apocalyptic number.

25155156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25155156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31907232).

25155156 is an abundant number, since it is smaller than the sum of its proper divisors (38659308).

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

25155156 is a wasteful number, since it uses less digits than its factorization.

25155156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560 (or 1558 counting only the distinct ones).

The product of its digits is 7500, while the sum is 30.

The square root of 25155156 is about 5015.4916010298. The cubic root of 25155156 is about 293.0054319175.

The spelling of 25155156 in words is "twenty-five million, one hundred fifty-five thousand, one hundred fifty-six".