25840073 has 8 divisors (see below), whose sum is σ = 30550080. Its totient is φ = 21384720.

The previous prime is 25840069. The next prime is 25840079. The reversal of 25840073 is 37004852.

It is a happy number.

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

It is not a de Polignac number, because 25840073 - 2² = 25840069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25840079) 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, 63443 + ... + 63848.

It is an arithmetic number, because the mean of its divisors is an integer number (3818760).

Almost surely, 2^25840073 is an apocalyptic number.

It is an amenable number.

25840073 is a deficient number, since it is larger than the sum of its proper divisors (4710007).

25840073 is a wasteful number, since it uses less digits than its factorization.

25840073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127327.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 25840073 is about 5083.3131912169. The cubic root of 25840073 is about 295.6409429159.

The spelling of 25840073 in words is "twenty-five million, eight hundred forty thousand, seventy-three".