25648265424 has 40 divisors (see below), whose sum is σ = 66263939392. Its totient is φ = 8548657920.

The previous prime is 25648265413. The next prime is 25648265429. The reversal of 25648265424 is 42456284652.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25648265429) by changing a digit.

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, 844812 + ... + 874644.

Almost surely, 2^25648265424 is an apocalyptic number.

25648265424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25648265424 is an abundant number, since it is smaller than the sum of its proper divisors (40615673968).

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

25648265424 is a wasteful number, since it uses less digits than its factorization.

25648265424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47755 (or 47749 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 48.

The spelling of 25648265424 in words is "twenty-five billion, six hundred forty-eight million, two hundred sixty-five thousand, four hundred twenty-four".