25222782 has 16 divisors (see below), whose sum is σ = 54326160. Its totient is φ = 7760832.

The previous prime is 25222777. The next prime is 25222793. The reversal of 25222782 is 28722252.

25222782 = T₂₃₆₃ + T₂₃₆₄ + ... + T₂₃₇₁.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161607 + ... + 161762.

It is an arithmetic number, because the mean of its divisors is an integer number (3395385).

Almost surely, 2^25222782 is an apocalyptic number.

25222782 is an abundant number, since it is smaller than the sum of its proper divisors (29103378).

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

25222782 is a wasteful number, since it uses less digits than its factorization.

25222782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323387.

The product of its digits is 8960, while the sum is 30.

The square root of 25222782 is about 5022.2287880980. The cubic root of 25222782 is about 293.2677645571.

The spelling of 25222782 in words is "twenty-five million, two hundred twenty-two thousand, seven hundred eighty-two".