25611152 has 40 divisors (see below), whose sum is σ = 57573696. Its totient is φ = 10809216.

The previous prime is 25611149. The next prime is 25611181. The reversal of 25611152 is 25111652.

It is a happy number.

It is a super-2 number, since 2×25611152² = 1311862213534208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5798 + ... + 9210.

Almost surely, 2^25611152 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 25611152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28786848).

25611152 is an abundant number, since it is smaller than the sum of its proper divisors (31962544).

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

25611152 is a wasteful number, since it uses less digits than its factorization.

25611152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495 (or 3489 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 25611152 is about 5060.7461900396. The cubic root of 25611152 is about 294.7653098443.

Subtracting from 25611152 its reverse (25111652), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 25611152 in words is "twenty-five million, six hundred eleven thousand, one hundred fifty-two".