25422022 has 4 divisors (see below), whose sum is σ = 38133036. Its totient is φ = 12711010.

The previous prime is 25422013. The next prime is 25422029. The reversal of 25422022 is 22022452.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25422029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6355504 + ... + 6355507.

It is an arithmetic number, because the mean of its divisors is an integer number (9533259).

Almost surely, 2^25422022 is an apocalyptic number.

25422022 is a deficient number, since it is larger than the sum of its proper divisors (12711014).

25422022 is a wasteful number, since it uses less digits than its factorization.

25422022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12711013.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 25422022 is about 5042.0255850204. The cubic root of 25422022 is about 294.0379345439.

Adding to 25422022 its reverse (22022452), we get a palindrome (47444474).

It can be divided in two parts, 254220 and 22, that multiplied together give a triangular number (5592840 = T₃₃₄₄).

The spelling of 25422022 in words is "twenty-five million, four hundred twenty-two thousand, twenty-two".