25113779 has 2 divisors, whose sum is σ = 25113780. Its totient is φ = 25113778.

The previous prime is 25113749. The next prime is 25113791. The reversal of 25113779 is 97731152.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25113779 - 2⁸ = 25113523 is a prime.

It is not a weakly prime, because it can be changed into another prime (25113719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556889 + 12556890.

It is an arithmetic number, because the mean of its divisors is an integer number (12556890).

Almost surely, 2^25113779 is an apocalyptic number.

25113779 is a deficient number, since it is larger than the sum of its proper divisors (1).

25113779 is an equidigital number, since it uses as much as digits as its factorization.

25113779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 35.

The square root of 25113779 is about 5011.3649837145. The cubic root of 25113779 is about 292.8446916550.

The spelling of 25113779 in words is "twenty-five million, one hundred thirteen thousand, seven hundred seventy-nine".