25320923 has 2 divisors, whose sum is σ = 25320924. Its totient is φ = 25320922.

The previous prime is 25320881. The next prime is 25320929. The reversal of 25320923 is 32902352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25320923 - 2¹² = 25316827 is a prime.

It is a super-2 number, since 2×25320923² = 1282298283143858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25320892 and 25320901.

It is not a weakly prime, because it can be changed into another prime (25320929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12660461 + 12660462.

It is an arithmetic number, because the mean of its divisors is an integer number (12660462).

Almost surely, 2^25320923 is an apocalyptic number.

25320923 is a deficient number, since it is larger than the sum of its proper divisors (1).

25320923 is an equidigital number, since it uses as much as digits as its factorization.

25320923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 25320923 is about 5031.9899642189. The cubic root of 25320923 is about 293.6476373081.

The spelling of 25320923 in words is "twenty-five million, three hundred twenty thousand, nine hundred twenty-three".