25235994448 has 40 divisors (see below), whose sum is σ = 57389973632. Its totient is φ = 10523115648.

The previous prime is 25235994439. The next prime is 25235994461. The reversal of 25235994448 is 84449953252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3040740 + ... + 3049027.

Almost surely, 2^25235994448 is an apocalyptic number.

25235994448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25235994448 is an abundant number, since it is smaller than the sum of its proper divisors (32153979184).

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

25235994448 is a wasteful number, since it uses less digits than its factorization.

25235994448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089819 (or 6089813 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 55.

The spelling of 25235994448 in words is "twenty-five billion, two hundred thirty-five million, nine hundred ninety-four thousand, four hundred forty-eight".