25519770223 has 2 divisors, whose sum is σ = 25519770224. Its totient is φ = 25519770222.

The previous prime is 25519770163. The next prime is 25519770323. The reversal of 25519770223 is 32207791552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25519770223 - 2¹³ = 25519762031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25519770223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25519770323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12759885111 + 12759885112.

It is an arithmetic number, because the mean of its divisors is an integer number (12759885112).

Almost surely, 2^25519770223 is an apocalyptic number.

25519770223 is a deficient number, since it is larger than the sum of its proper divisors (1).

25519770223 is an equidigital number, since it uses as much as digits as its factorization.

25519770223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 25519770223 in words is "twenty-five billion, five hundred nineteen million, seven hundred seventy thousand, two hundred twenty-three".