25728312 has 32 divisors (see below), whose sum is σ = 64656000. Its totient is φ = 8531424.

The previous prime is 25728301. The next prime is 25728323. The reversal of 25728312 is 21382752.

It is an interprime number because it is at equal distance from previous prime (25728301) and next prime (25728323).

It is a self number, because there is not a number n which added to its sum of digits gives 25728312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (2020500).

Almost surely, 2^25728312 is an apocalyptic number.

It is an amenable number.

25728312 is an abundant number, since it is smaller than the sum of its proper divisors (38927688).

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

25728312 is a wasteful number, since it uses less digits than its factorization.

25728312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595 (or 5591 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 25728312 is about 5072.3083502484. The cubic root of 25728312 is about 295.2141010149.

The spelling of 25728312 in words is "twenty-five million, seven hundred twenty-eight thousand, three hundred twelve".