25728612 has 48 divisors (see below), whose sum is σ = 73890432. Its totient is φ = 6785280.

The previous prime is 25728583. The next prime is 25728617. The reversal of 25728612 is 21682752.

It is a super-2 number, since 2×25728612² = 1323922950893088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25728617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10689 + ... + 12872.

It is an arithmetic number, because the mean of its divisors is an integer number (1539384).

Almost surely, 2^25728612 is an apocalyptic number.

It is an amenable number.

25728612 is an abundant number, since it is smaller than the sum of its proper divisors (48161820).

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

25728612 is a wasteful number, since it uses less digits than its factorization.

25728612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23588 (or 23586 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 25728612 is about 5072.3379224969. The cubic root of 25728612 is about 295.2152484394.

The spelling of 25728612 in words is "twenty-five million, seven hundred twenty-eight thousand, six hundred twelve".