25840097 has 8 divisors (see below), whose sum is σ = 27041256. Its totient is φ = 24665472.

The previous prime is 25840093. The next prime is 25840099. The reversal of 25840097 is 79004852.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13512976 + 12327121 = 3676^2 + 3511^2 .

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 25840097 - 2² = 25840093 is a prime.

It is a super-2 number, since 2×25840097² = 1335421225938818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25840093) 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, 4628 + ... + 8549.

It is an arithmetic number, because the mean of its divisors is an integer number (3380157).

Almost surely, 2^25840097 is an apocalyptic number.

It is an amenable number.

25840097 is a deficient number, since it is larger than the sum of its proper divisors (1201159).

25840097 is a wasteful number, since it uses less digits than its factorization.

25840097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13267.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 25840097 is about 5083.3155518815. The cubic root of 25840097 is about 295.6410344453.

The spelling of 25840097 in words is "twenty-five million, eight hundred forty thousand, ninety-seven".