25623337 has 2 divisors, whose sum is σ = 25623338. Its totient is φ = 25623336.

The previous prime is 25623289. The next prime is 25623359. The reversal of 25623337 is 73332652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13366336 + 12257001 = 3656^2 + 3501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25623337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25623299 and 25623308.

It is not a weakly prime, because it can be changed into another prime (25623737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12811668 + 12811669.

It is an arithmetic number, because the mean of its divisors is an integer number (12811669).

Almost surely, 2^25623337 is an apocalyptic number.

It is an amenable number.

25623337 is a deficient number, since it is larger than the sum of its proper divisors (1).

25623337 is an equidigital number, since it uses as much as digits as its factorization.

25623337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 31.

The square root of 25623337 is about 5061.9499207321. The cubic root of 25623337 is about 294.8120491949.

Adding to 25623337 its reverse (73332652), we get a palindrome (98955989).

The spelling of 25623337 in words is "twenty-five million, six hundred twenty-three thousand, three hundred thirty-seven".