25122449 has 8 divisors (see below), whose sum is σ = 28044192. Its totient is φ = 22307040.

The previous prime is 25122403. The next prime is 25122451. The reversal of 25122449 is 94422152.

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 25122449 - 2²⁰ = 24073873 is a prime.

It is a super-2 number, since 2×25122449² = 1262274887515202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25122949) 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, 26084 + ... + 27029.

It is an arithmetic number, because the mean of its divisors is an integer number (3505524).

Almost surely, 2^25122449 is an apocalyptic number.

It is an amenable number.

25122449 is a deficient number, since it is larger than the sum of its proper divisors (2921743).

25122449 is a wasteful number, since it uses less digits than its factorization.

25122449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53167.

The product of its digits is 5760, while the sum is 29.

The square root of 25122449 is about 5012.2299428498. The cubic root of 25122449 is about 292.8783872524.

The spelling of 25122449 in words is "twenty-five million, one hundred twenty-two thousand, four hundred forty-nine".