25148809020 has 48 divisors (see below), whose sum is σ = 70444402560. Its totient is φ = 6703707456.

The previous prime is 25148808983. The next prime is 25148809039. The reversal of 25148809020 is 2090884152.

It is a self number, because there is not a number n which added to its sum of digits gives 25148809020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73479 + ... + 236001.

It is an arithmetic number, because the mean of its divisors is an integer number (1467591720).

Almost surely, 2^25148809020 is an apocalyptic number.

25148809020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25148809020 is an abundant number, since it is smaller than the sum of its proper divisors (45295593540).

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

25148809020 is a wasteful number, since it uses less digits than its factorization.

25148809020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165114 (or 165112 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 25148809020 in words is "twenty-five billion, one hundred forty-eight million, eight hundred nine thousand, twenty".