25742897 has 8 divisors (see below), whose sum is σ = 26019840. Its totient is φ = 25467840.

The previous prime is 25742881. The next prime is 25742903. The reversal of 25742897 is 79824752.

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 25742897 - 2⁴ = 25742881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25742837) 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, 53504 + ... + 53982.

It is an arithmetic number, because the mean of its divisors is an integer number (3252480).

Almost surely, 2^25742897 is an apocalyptic number.

It is an amenable number.

25742897 is a deficient number, since it is larger than the sum of its proper divisors (276943).

25742897 is a wasteful number, since it uses less digits than its factorization.

25742897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its digits is 282240, while the sum is 44.

The square root of 25742897 is about 5073.7458548887. The cubic root of 25742897 is about 295.2698746480.

The spelling of 25742897 in words is "twenty-five million, seven hundred forty-two thousand, eight hundred ninety-seven".