25939432 has 8 divisors (see below), whose sum is σ = 48636450. Its totient is φ = 12969712.

The previous prime is 25939421. The next prime is 25939453. The reversal of 25939432 is 23493952.

It can be written as a sum of positive squares in only one way, i.e., 25140196 + 799236 = 5014^2 + 894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 25939391 and 25939400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621207 + ... + 1621222.

Almost surely, 2^25939432 is an apocalyptic number.

It is an amenable number.

25939432 is a deficient number, since it is larger than the sum of its proper divisors (22697018).

25939432 is a wasteful number, since it uses less digits than its factorization.

25939432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242435 (or 3242431 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 25939432 is about 5093.0768696339. The cubic root of 25939432 is about 296.0193863611.

The spelling of 25939432 in words is "twenty-five million, nine hundred thirty-nine thousand, four hundred thirty-two".