25225557 has 8 divisors (see below), whose sum is σ = 38438976. Its totient is φ = 14414592.

The previous prime is 25225553. The next prime is 25225573. The reversal of 25225557 is 75552252.

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

It is not a de Polignac number, because 25225557 - 2² = 25225553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600588 + ... + 600629.

It is an arithmetic number, because the mean of its divisors is an integer number (4804872).

Almost surely, 2^25225557 is an apocalyptic number.

It is an amenable number.

25225557 is a deficient number, since it is larger than the sum of its proper divisors (13213419).

25225557 is a wasteful number, since it uses less digits than its factorization.

25225557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201227.

The product of its digits is 35000, while the sum is 33.

The square root of 25225557 is about 5022.5050522623. The cubic root of 25225557 is about 293.2785192286.

The spelling of 25225557 in words is "twenty-five million, two hundred twenty-five thousand, five hundred fifty-seven".