25127728 has 20 divisors (see below), whose sum is σ = 51247960. Its totient is φ = 11902464.

The previous prime is 25127723. The next prime is 25127741. The reversal of 25127728 is 82772152.

It is a junction number, because it is equal to n+sod(n) for n = 25127693 and 25127702.

It is not an unprimeable number, because it can be changed into a prime (25127723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41025 + ... + 41632.

It is an arithmetic number, because the mean of its divisors is an integer number (2562398).

Almost surely, 2^25127728 is an apocalyptic number.

It is an amenable number.

25127728 is an abundant number, since it is smaller than the sum of its proper divisors (26120232).

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

25127728 is a wasteful number, since it uses less digits than its factorization.

25127728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82684 (or 82678 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 25127728 is about 5012.7565271016. The cubic root of 25127728 is about 292.8989000711.

The spelling of 25127728 in words is "twenty-five million, one hundred twenty-seven thousand, seven hundred twenty-eight".