25372728 has 24 divisors (see below), whose sum is σ = 68718000. Its totient is φ = 8457552.

The previous prime is 25372723. The next prime is 25372729. The reversal of 25372728 is 82727352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 25372692 and 25372701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25372723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176128 + ... + 176271.

It is an arithmetic number, because the mean of its divisors is an integer number (2863250).

Almost surely, 2^25372728 is an apocalyptic number.

It is an amenable number.

25372728 is an abundant number, since it is smaller than the sum of its proper divisors (43345272).

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

25372728 is a wasteful number, since it uses less digits than its factorization.

25372728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352411 (or 352404 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 25372728 is about 5037.1348999208. The cubic root of 25372728 is about 293.8477623599.

The spelling of 25372728 in words is "twenty-five million, three hundred seventy-two thousand, seven hundred twenty-eight".