25438073 has 8 divisors (see below), whose sum is σ = 26507520. Its totient is φ = 24384240.

The previous prime is 25438057. The next prime is 25438111. The reversal of 25438073 is 37083452.

It is a happy number.

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 25438073 - 2⁴ = 25438057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25438033) 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, 518 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (3313440).

Almost surely, 2^25438073 is an apocalyptic number.

It is an amenable number.

25438073 is a deficient number, since it is larger than the sum of its proper divisors (1069447).

25438073 is a wasteful number, since it uses less digits than its factorization.

25438073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 25438073 is about 5043.6170552491. The cubic root of 25438073 is about 294.0998049169.

The spelling of 25438073 in words is "twenty-five million, four hundred thirty-eight thousand, seventy-three".