25402272 has 96 divisors (see below), whose sum is σ = 77156352. Its totient is φ = 7167744.

The previous prime is 25402271. The next prime is 25402319. The reversal of 25402272 is 27220452.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (25402271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69033 + ... + 69399.

It is an arithmetic number, because the mean of its divisors is an integer number (803712).

Almost surely, 2^25402272 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 25402272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38578176).

25402272 is an abundant number, since it is smaller than the sum of its proper divisors (51754080).

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

25402272 is a wasteful number, since it uses less digits than its factorization.

25402272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 25402272 is about 5040.0666662258. The cubic root of 25402272 is about 293.9617702153.

The spelling of 25402272 in words is "twenty-five million, four hundred two thousand, two hundred seventy-two".