25871552 has 112 divisors (see below), whose sum is σ = 64373760. Its totient is φ = 10063872.

The previous prime is 25871543. The next prime is 25871561. The reversal of 25871552 is 25517852.

It is an interprime number because it is at equal distance from previous prime (25871543) and next prime (25871561).

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327449 + ... + 327527.

Almost surely, 2^25871552 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 25871552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32186880).

25871552 is an abundant number, since it is smaller than the sum of its proper divisors (38502208).

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

25871552 is a wasteful number, since it uses less digits than its factorization.

25871552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 148 counting only the distinct ones).

The product of its digits is 28000, while the sum is 35.

The square root of 25871552 is about 5086.4085561425. The cubic root of 25871552 is about 295.7609465071.

The spelling of 25871552 in words is "twenty-five million, eight hundred seventy-one thousand, five hundred fifty-two".