25730496 has 168 divisors, whose sum is σ = 83685888. Its totient is φ = 7488000.

The previous prime is 25730483. The next prime is 25730519. The reversal of 25730496 is 69403752.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 25730496.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196351 + ... + 196481.

Almost surely, 2^25730496 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 25730496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41842944).

25730496 is an abundant number, since it is smaller than the sum of its proper divisors (57955392).

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

25730496 is a wasteful number, since it uses less digits than its factorization.

25730496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 25730496 is about 5072.5236322761. The cubic root of 25730496 is about 295.2224540613. Note that the first 3 decimals are identical.

The spelling of 25730496 in words is "twenty-five million, seven hundred thirty thousand, four hundred ninety-six".