25025803920 has 360 divisors, whose sum is σ = 93143217024. Its totient is φ = 6015679488.

The previous prime is 25025803919. The next prime is 25025803927. The reversal of 25025803920 is 2930852052.

25025803920 is a `hidden beast` number, since 2 + 50 + 2 + 580 + 3 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25025803927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5229849 + ... + 5234631.

Almost surely, 2^25025803920 is an apocalyptic number.

25025803920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25025803920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46571608512).

25025803920 is an abundant number, since it is smaller than the sum of its proper divisors (68117413104).

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

25025803920 is a wasteful number, since it uses less digits than its factorization.

25025803920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871 (or 4849 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 25025803920 in words is "twenty-five billion, twenty-five million, eight hundred three thousand, nine hundred twenty".