25735328 has 48 divisors (see below), whose sum is σ = 52889760. Its totient is φ = 12316416.

The previous prime is 25735327. The next prime is 25735357. The reversal of 25735328 is 82353752.

It is a Cunningham number, because it is equal to 5073²-1.

It is not an unprimeable number, because it can be changed into a prime (25735327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81026 + ... + 81342.

It is an arithmetic number, because the mean of its divisors is an integer number (1101870).

Almost surely, 2^25735328 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 25735328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26444880).

25735328 is an abundant number, since it is smaller than the sum of its proper divisors (27154432).

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

25735328 is a wasteful number, since it uses less digits than its factorization.

25735328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 421 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 25735328 is about 5072.9999014390. Note that the first 4 decimals coincide. The cubic root of 25735328 is about 295.2409331145.

The spelling of 25735328 in words is "twenty-five million, seven hundred thirty-five thousand, three hundred twenty-eight".