25222860 has 96 divisors (see below), whose sum is σ = 84530880. Its totient is φ = 6206976.

The previous prime is 25222807. The next prime is 25222877. The reversal of 25222860 is 6822252.

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 31 ways as a sum of consecutive naturals, for example, 5224 + ... + 8816.

It is an arithmetic number, because the mean of its divisors is an integer number (880530).

Almost surely, 2^25222860 is an apocalyptic number.

25222860 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 25222860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42265440).

25222860 is an abundant number, since it is smaller than the sum of its proper divisors (59308020).

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

25222860 is a wasteful number, since it uses less digits than its factorization.

25222860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624 (or 3616 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 25222860 is about 5022.2365535685. The cubic root of 25222860 is about 293.2680668613.

The spelling of 25222860 in words is "twenty-five million, two hundred twenty-two thousand, eight hundred sixty".