25708704 has 96 divisors (see below), whose sum is σ = 78414336. Its totient is φ = 7223040.

The previous prime is 25708693. The next prime is 25708721. The reversal of 25708704 is 40780752.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×25708704² = 1321874922719232, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44739 + ... + 45309.

It is an arithmetic number, because the mean of its divisors is an integer number (816816).

Almost surely, 2^25708704 is an apocalyptic number.

25708704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25708704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39207168).

25708704 is an abundant number, since it is smaller than the sum of its proper divisors (52705632).

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

25708704 is a wasteful number, since it uses less digits than its factorization.

25708704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 25708704 is about 5070.3751340507. The cubic root of 25708704 is about 295.1390859985.

The spelling of 25708704 in words is "twenty-five million, seven hundred eight thousand, seven hundred four".