25091332 has 36 divisors (see below), whose sum is σ = 51367260. Its totient is φ = 10692864.

The previous prime is 25091327. The next prime is 25091357. The reversal of 25091332 is 23319052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9834496 + 15256836 = 3136^2 + 3906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25091297 and 25091306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61144 + ... + 61552.

Almost surely, 2^25091332 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 25091332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25683630).

25091332 is an abundant number, since it is smaller than the sum of its proper divisors (26275928).

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

25091332 is a wasteful number, since it uses less digits than its factorization.

25091332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 25091332 is about 5009.1248736681. The cubic root of 25091332 is about 292.7574162692.

The spelling of 25091332 in words is "twenty-five million, ninety-one thousand, three hundred thirty-two".