25540927 has 2 divisors, whose sum is σ = 25540928. Its totient is φ = 25540926.

The previous prime is 25540913. The next prime is 25540961. The reversal of 25540927 is 72904552.

It is an a-pointer prime, because the next prime (25540961) can be obtained adding 25540927 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25540927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25540892 and 25540901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25540127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12770463 + 12770464.

It is an arithmetic number, because the mean of its divisors is an integer number (12770464).

Almost surely, 2^25540927 is an apocalyptic number.

25540927 is a deficient number, since it is larger than the sum of its proper divisors (1).

25540927 is an equidigital number, since it uses as much as digits as its factorization.

25540927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 25540927 is about 5053.8032213374. The cubic root of 25540927 is about 294.4956507227.

The spelling of 25540927 in words is "twenty-five million, five hundred forty thousand, nine hundred twenty-seven".