25004647120 has 80 divisors (see below), whose sum is σ = 60057727488. Its totient is φ = 9671708160.

The previous prime is 25004647117. The next prime is 25004647123. The reversal of 25004647120 is 2174640052.

It is an interprime number because it is at equal distance from previous prime (25004647117) and next prime (25004647123).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25004647123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4031862 + ... + 4038058.

Almost surely, 2^25004647120 is an apocalyptic number.

25004647120 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 25004647120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30028863744).

25004647120 is an abundant number, since it is smaller than the sum of its proper divisors (35053080368).

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

25004647120 is a wasteful number, since it uses less digits than its factorization.

25004647120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7868 (or 7862 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 25004647120 in words is "twenty-five billion, four million, six hundred forty-seven thousand, one hundred twenty".