25222542 has 8 divisors (see below), whose sum is σ = 50445096. Its totient is φ = 8407512.

The previous prime is 25222529. The next prime is 25222573. The reversal of 25222542 is 24522252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

25222542 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101873 + ... + 2101884.

It is an arithmetic number, because the mean of its divisors is an integer number (6305637).

Almost surely, 2^25222542 is an apocalyptic number.

25222542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25222542 is a wasteful number, since it uses less digits than its factorization.

25222542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203762.

The product of its digits is 3200, while the sum is 24.

The square root of 25222542 is about 5022.2048942671. The cubic root of 25222542 is about 293.2668343863.

Adding to 25222542 its reverse (24522252), we get a palindrome (49744794).

The spelling of 25222542 in words is "twenty-five million, two hundred twenty-two thousand, five hundred forty-two".