25334993 has 4 divisors (see below), whose sum is σ = 25416768. Its totient is φ = 25253220.

The previous prime is 25334971. The next prime is 25335017. The reversal of 25334993 is 39943352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25334993 - 2⁶ = 25334929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25334963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40421 + ... + 41042.

It is an arithmetic number, because the mean of its divisors is an integer number (6354192).

Almost surely, 2^25334993 is an apocalyptic number.

It is an amenable number.

25334993 is a deficient number, since it is larger than the sum of its proper divisors (81775).

25334993 is an equidigital number, since it uses as much as digits as its factorization.

25334993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81774.

The product of its digits is 87480, while the sum is 38.

The square root of 25334993 is about 5033.3878253121. The cubic root of 25334993 is about 293.7020173324.

The spelling of 25334993 in words is "twenty-five million, three hundred thirty-four thousand, nine hundred ninety-three".