25730448 has 20 divisors (see below), whose sum is σ = 66470448. Its totient is φ = 8576800.

The previous prime is 25730437. The next prime is 25730449. The reversal of 25730448 is 84403752.

It is not an unprimeable number, because it can be changed into a prime (25730449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267978 + ... + 268073.

Almost surely, 2^25730448 is an apocalyptic number.

It is an amenable number.

25730448 is an abundant number, since it is smaller than the sum of its proper divisors (40740000).

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

25730448 is a wasteful number, since it uses less digits than its factorization.

25730448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536062 (or 536056 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 25730448 is about 5072.5189009012. The cubic root of 25730448 is about 295.2222704829. Note that the first 4 decimals are identical.

The spelling of 25730448 in words is "twenty-five million, seven hundred thirty thousand, four hundred forty-eight".