25069536 has 72 divisors (see below), whose sum is σ = 72510984. Its totient is φ = 8213760.

The previous prime is 25069523. The next prime is 25069537. The reversal of 25069536 is 63596052.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 25069536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25069537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16855 + ... + 18281.

It is an arithmetic number, because the mean of its divisors is an integer number (1007097).

Almost surely, 2^25069536 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 25069536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36255492).

25069536 is an abundant number, since it is smaller than the sum of its proper divisors (47441448).

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

25069536 is a wasteful number, since it uses less digits than its factorization.

25069536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 25069536 is about 5006.9487714575. The cubic root of 25069536 is about 292.6726221900.

The spelling of 25069536 in words is "twenty-five million, sixty-nine thousand, five hundred thirty-six".