25222789 has 16 divisors (see below), whose sum is σ = 27381888. Its totient is φ = 23170752.

The previous prime is 25222777. The next prime is 25222793. The reversal of 25222789 is 98722252.

It is not a de Polignac number, because 25222789 - 2⁷ = 25222661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25223789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90919 + ... + 91195.

It is an arithmetic number, because the mean of its divisors is an integer number (1711368).

Almost surely, 2^25222789 is an apocalyptic number.

It is an amenable number.

25222789 is a deficient number, since it is larger than the sum of its proper divisors (2159099).

25222789 is a wasteful number, since it uses less digits than its factorization.

25222789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its digits is 40320, while the sum is 37.

The square root of 25222789 is about 5022.2294849997. The cubic root of 25222789 is about 293.2677916870.

The spelling of 25222789 in words is "twenty-five million, two hundred twenty-two thousand, seven hundred eighty-nine".