25612122 has 16 divisors (see below), whose sum is σ = 51532992. Its totient is φ = 8485920.

The previous prime is 25612117. The next prime is 25612127. The reversal of 25612122 is 22121652.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25612117) and next prime (25612127).

It is not an unprimeable number, because it can be changed into a prime (25612127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11779 + ... + 13782.

It is an arithmetic number, because the mean of its divisors is an integer number (3220812).

Almost surely, 2^25612122 is an apocalyptic number.

25612122 is an abundant number, since it is smaller than the sum of its proper divisors (25920870).

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

25612122 is a wasteful number, since it uses less digits than its factorization.

25612122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25733.

The product of its digits is 480, while the sum is 21.

The square root of 25612122 is about 5060.8420248018. The cubic root of 25612122 is about 294.7690311235.

Adding to 25612122 its reverse (22121652), we get a palindrome (47733774).

The spelling of 25612122 in words is "twenty-five million, six hundred twelve thousand, one hundred twenty-two".