25271532 has 72 divisors (see below), whose sum is σ = 75064080. Its totient is φ = 7067520.

The previous prime is 25271531. The next prime is 25271551. The reversal of 25271532 is 23517252.

It is a junction number, because it is equal to n+sod(n) for n = 25271496 and 25271505.

It is not an unprimeable number, because it can be changed into a prime (25271531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2694 + ... + 7602.

Almost surely, 2^25271532 is an apocalyptic number.

25271532 is a gapful number since it is divisible by the number (22) 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 25271532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37532040).

25271532 is an abundant number, since it is smaller than the sum of its proper divisors (49792548).

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

25271532 is a wasteful number, since it uses less digits than its factorization.

25271532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943 (or 4938 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 25271532 is about 5027.0798680745. The cubic root of 25271532 is about 293.4565833078.

Adding to 25271532 its reverse (23517252), we get a palindrome (48788784).

The spelling of 25271532 in words is "twenty-five million, two hundred seventy-one thousand, five hundred thirty-two".