25221422014 has 8 divisors (see below), whose sum is σ = 38711950200. Its totient is φ = 12317438616.

The previous prime is 25221421991. The next prime is 25221422063. The reversal of 25221422014 is 41022412252.

It is a happy number.

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

It is a super-2 number, since 2×25221422014² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25221422014.

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, 146636089 + ... + 146636260.

It is an arithmetic number, because the mean of its divisors is an integer number (4838993775).

Almost surely, 2^25221422014 is an apocalyptic number.

25221422014 is a deficient number, since it is larger than the sum of its proper divisors (13490528186).

25221422014 is a wasteful number, since it uses less digits than its factorization.

25221422014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293272394.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 25221422014 its reverse (41022412252), we get a palindrome (66243834266).

The spelling of 25221422014 in words is "twenty-five billion, two hundred twenty-one million, four hundred twenty-two thousand, fourteen".