25229646148 has 12 divisors (see below), whose sum is σ = 50459292352. Its totient is φ = 10812705480.

The previous prime is 25229646103. The next prime is 25229646149. The reversal of 25229646148 is 84164692252.

25229646148 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25229646149) 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, 450529368 + ... + 450529423.

Almost surely, 2^25229646148 is an apocalyptic number.

25229646148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25229646148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25229646148 is a wasteful number, since it uses less digits than its factorization.

25229646148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901058802 (or 901058800 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The spelling of 25229646148 in words is "twenty-five billion, two hundred twenty-nine million, six hundred forty-six thousand, one hundred forty-eight".