25321337 has 2 divisors, whose sum is σ = 25321338. Its totient is φ = 25321336.

The previous prime is 25321277. The next prime is 25321339. The reversal of 25321337 is 73312352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13957696 + 11363641 = 3736^2 + 3371^2 .

It is a cyclic number.

It is not a de Polignac number, because 25321337 - 2¹⁸ = 25059193 is a prime.

Together with 25321339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25321339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12660668 + 12660669.

It is an arithmetic number, because the mean of its divisors is an integer number (12660669).

Almost surely, 2^25321337 is an apocalyptic number.

It is an amenable number.

25321337 is a deficient number, since it is larger than the sum of its proper divisors (1).

25321337 is an equidigital number, since it uses as much as digits as its factorization.

25321337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 26.

The square root of 25321337 is about 5032.0311008578. The cubic root of 25321337 is about 293.6492376903.

Adding to 25321337 its reverse (73312352), we get a palindrome (98633689).

The spelling of 25321337 in words is "twenty-five million, three hundred twenty-one thousand, three hundred thirty-seven".