25821246060 has 72 divisors (see below), whose sum is σ = 78358172256. Its totient is φ = 6882700800.

The previous prime is 25821246053. The next prime is 25821246071. The reversal of 25821246060 is 6064212852.

It is a happy number.

25821246060 is a `hidden beast` number, since 2 + 5 + 8 + 21 + 24 + 606 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405385 + ... + 464735.

It is an arithmetic number, because the mean of its divisors is an integer number (1088307948).

Almost surely, 2^25821246060 is an apocalyptic number.

25821246060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25821246060 is an abundant number, since it is smaller than the sum of its proper divisors (52536926196).

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

25821246060 is a wasteful number, since it uses less digits than its factorization.

25821246060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61783 (or 61778 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 25821246060 in words is "twenty-five billion, eight hundred twenty-one million, two hundred forty-six thousand, sixty".