25136122 has 16 divisors (see below), whose sum is σ = 41748192. Its totient is φ = 11254320.

The previous prime is 25136113. The next prime is 25136129. The reversal of 25136122 is 22163152.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 25136093 and 25136102.

It is not an unprimeable number, because it can be changed into a prime (25136129) 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, 7053 + ... + 10000.

It is an arithmetic number, because the mean of its divisors is an integer number (2609262).

Almost surely, 2^25136122 is an apocalyptic number.

25136122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25136122 is a deficient number, since it is larger than the sum of its proper divisors (16612070).

25136122 is a wasteful number, since it uses less digits than its factorization.

25136122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17133.

The product of its digits is 720, while the sum is 22.

The square root of 25136122 is about 5013.5937210747. The cubic root of 25136122 is about 292.9315110530.

Adding to 25136122 its reverse (22163152), we get a palindrome (47299274).

The spelling of 25136122 in words is "twenty-five million, one hundred thirty-six thousand, one hundred twenty-two".