25435072 has 56 divisors (see below), whose sum is σ = 57251600. Its totient is φ = 11114496.

The previous prime is 25435063. The next prime is 25435073. The reversal of 25435072 is 27053452.

It is a self number, because there is not a number n which added to its sum of digits gives 25435072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25435073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15004 + ... + 16612.

It is an arithmetic number, because the mean of its divisors is an integer number (1022350).

Almost surely, 2^25435072 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 25435072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28625800).

25435072 is an abundant number, since it is smaller than the sum of its proper divisors (31816528).

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

25435072 is a wasteful number, since it uses less digits than its factorization.

25435072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25435072 is about 5043.3195417304. The cubic root of 25435072 is about 294.0882392056.

The spelling of 25435072 in words is "twenty-five million, four hundred thirty-five thousand, seventy-two".