25495632 has 60 divisors (see below), whose sum is σ = 72099924. Its totient is φ = 8409600.

The previous prime is 25495619. The next prime is 25495633. The reversal of 25495632 is 23659452.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 13133376 = 3516^2 + 3624^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25495633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13668 + ... + 15420.

Almost surely, 2^25495632 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 25495632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36049962).

25495632 is an abundant number, since it is smaller than the sum of its proper divisors (46604292).

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

25495632 is a wasteful number, since it uses less digits than its factorization.

25495632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868 (or 1859 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 25495632 is about 5049.3199542117. The cubic root of 25495632 is about 294.3214587466.

The spelling of 25495632 in words is "twenty-five million, four hundred ninety-five thousand, six hundred thirty-two".