25210847340 has 288 divisors, whose sum is σ = 95526273024. Its totient is φ = 5248419840.

The previous prime is 25210847339. The next prime is 25210847359. The reversal of 25210847340 is 4374801252.

It is a happy number.

25210847340 is a `hidden beast` number, since 25 + 210 + 84 + 7 + 340 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 25210847295 and 25210847304.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 645037 + ... + 683003.

It is an arithmetic number, because the mean of its divisors is an integer number (331688448).

Almost surely, 2^25210847340 is an apocalyptic number.

25210847340 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 25210847340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47763136512).

25210847340 is an abundant number, since it is smaller than the sum of its proper divisors (70315425684).

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

25210847340 is a wasteful number, since it uses less digits than its factorization.

25210847340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38037 (or 38032 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 25210847340 in words is "twenty-five billion, two hundred ten million, eight hundred forty-seven thousand, three hundred forty".