25053118020 has 192 divisors, whose sum is σ = 90759191040. Its totient is φ = 5618336256.

The previous prime is 25053117997. The next prime is 25053118037. The reversal of 25053118020 is 2081135052.

It is a happy number.

25053118020 is a `hidden beast` number, since 2 + 50 + 531 + 1 + 80 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137814 + ... + 262866.

It is an arithmetic number, because the mean of its divisors is an integer number (472704120).

Almost surely, 2^25053118020 is an apocalyptic number.

25053118020 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 25053118020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45379595520).

25053118020 is an abundant number, since it is smaller than the sum of its proper divisors (65706073020).

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

25053118020 is a wasteful number, since it uses less digits than its factorization.

25053118020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125131 (or 125123 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 25053118020 in words is "twenty-five billion, fifty-three million, one hundred eighteen thousand, twenty".