25222861 has 8 divisors (see below), whose sum is σ = 26673920. Its totient is φ = 23784192.

The previous prime is 25222807. The next prime is 25222877. The reversal of 25222861 is 16822252.

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

It is a cyclic number.

It is not a de Polignac number, because 25222861 - 2⁹ = 25222349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25222891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (3334240).

Almost surely, 2^25222861 is an apocalyptic number.

It is an amenable number.

25222861 is a deficient number, since it is larger than the sum of its proper divisors (1451059).

25222861 is a wasteful number, since it uses less digits than its factorization.

25222861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6195.

The product of its digits is 3840, while the sum is 28.

The square root of 25222861 is about 5022.2366531258. The cubic root of 25222861 is about 293.2680707370.

The spelling of 25222861 in words is "twenty-five million, two hundred twenty-two thousand, eight hundred sixty-one".