25434732 has 12 divisors (see below), whose sum is σ = 59347736. Its totient is φ = 8478240.

The previous prime is 25434707. The next prime is 25434751. The reversal of 25434732 is 23743452.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25434732.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059769 + ... + 1059792.

Almost surely, 2^25434732 is an apocalyptic number.

It is an amenable number.

25434732 is an abundant number, since it is smaller than the sum of its proper divisors (33913004).

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

25434732 is a wasteful number, since it uses less digits than its factorization.

25434732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119568 (or 2119566 counting only the distinct ones).

The product of its digits is 20160, while the sum is 30.

The square root of 25434732 is about 5043.2858336604. The cubic root of 25434732 is about 294.0869288044.

The spelling of 25434732 in words is "twenty-five million, four hundred thirty-four thousand, seven hundred thirty-two".