25820723 has 2 divisors, whose sum is σ = 25820724. Its totient is φ = 25820722.

The previous prime is 25820689. The next prime is 25820731. The reversal of 25820723 is 32702852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25820723 - 2⁶ = 25820659 is a prime.

It is not a weakly prime, because it can be changed into another prime (25820023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12910361 + 12910362.

It is an arithmetic number, because the mean of its divisors is an integer number (12910362).

Almost surely, 2^25820723 is an apocalyptic number.

25820723 is a deficient number, since it is larger than the sum of its proper divisors (1).

25820723 is an equidigital number, since it uses as much as digits as its factorization.

25820723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 25820723 is about 5081.4095485406. The cubic root of 25820723 is about 295.5671288728.

The spelling of 25820723 in words is "twenty-five million, eight hundred twenty thousand, seven hundred twenty-three".