25433472 has 64 divisors (see below), whose sum is σ = 68299200. Its totient is φ = 8385024.

The previous prime is 25433461. The next prime is 25433477. The reversal of 25433472 is 27433452.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×25433472² = 1293722995949568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25433477) 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 7 ways as a sum of consecutive naturals, for example, 40779 + ... + 41397.

It is an arithmetic number, because the mean of its divisors is an integer number (1067175).

Almost surely, 2^25433472 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 25433472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34149600).

25433472 is an abundant number, since it is smaller than the sum of its proper divisors (42865728).

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

25433472 is a wasteful number, since it uses less digits than its factorization.

25433472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 731 counting only the distinct ones).

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

The square root of 25433472 is about 5043.1609135541. The cubic root of 25433472 is about 294.0820725099.

The spelling of 25433472 in words is "twenty-five million, four hundred thirty-three thousand, four hundred seventy-two".