25733013 has 4 divisors (see below), whose sum is σ = 34310688. Its totient is φ = 17155340.

The previous prime is 25733003. The next prime is 25733051. The reversal of 25733013 is 31033752.

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 25733013 - 2⁴ = 25732997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25733003) 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, 4288833 + ... + 4288838.

It is an arithmetic number, because the mean of its divisors is an integer number (8577672).

Almost surely, 2^25733013 is an apocalyptic number.

It is an amenable number.

25733013 is a deficient number, since it is larger than the sum of its proper divisors (8577675).

25733013 is an equidigital number, since it uses as much as digits as its factorization.

25733013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577674.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 25733013 is about 5072.7717275667. The cubic root of 25733013 is about 295.2320801316.

Adding to 25733013 its reverse (31033752), we get a palindrome (56766765).

The spelling of 25733013 in words is "twenty-five million, seven hundred thirty-three thousand, thirteen".