25122061 has 4 divisors (see below), whose sum is σ = 25134300. Its totient is φ = 25109824.

The previous prime is 25122043. The next prime is 25122077. The reversal of 25122061 is 16022152.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20304036 + 4818025 = 4506^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 25122061 - 2⁵ = 25122029 is a prime.

It is a super-2 number, since 2×25122061² = 1262235897775442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25122011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206 + ... + 7423.

It is an arithmetic number, because the mean of its divisors is an integer number (6283575).

Almost surely, 2^25122061 is an apocalyptic number.

It is an amenable number.

25122061 is a deficient number, since it is larger than the sum of its proper divisors (12239).

25122061 is an equidigital number, since it uses as much as digits as its factorization.

25122061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12238.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 25122061 is about 5012.1912373731. The cubic root of 25122061 is about 292.8768794721.

Subtracting from 25122061 its reverse (16022152), we obtain a palindrome (9099909).

The spelling of 25122061 in words is "twenty-five million, one hundred twenty-two thousand, sixty-one".