25082779 has 2 divisors, whose sum is σ = 25082780. Its totient is φ = 25082778.

The previous prime is 25082747. The next prime is 25082789. The reversal of 25082779 is 97728052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25082779 - 2⁵ = 25082747 is a prime.

It is not a weakly prime, because it can be changed into another prime (25082789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12541389 + 12541390.

It is an arithmetic number, because the mean of its divisors is an integer number (12541390).

Almost surely, 2^25082779 is an apocalyptic number.

25082779 is a deficient number, since it is larger than the sum of its proper divisors (1).

25082779 is an equidigital number, since it uses as much as digits as its factorization.

25082779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 25082779 is about 5008.2710589584. The cubic root of 25082779 is about 292.7241479577.

The spelling of 25082779 in words is "twenty-five million, eighty-two thousand, seven hundred seventy-nine".