23005519 has 2 divisors, whose sum is σ = 23005520. Its totient is φ = 23005518.

The previous prime is 23005517. The next prime is 23005529. The reversal of 23005519 is 91550032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23005519 - 2¹ = 23005517 is a prime.

It is a super-2 number, since 2×23005519² = 1058507808918722, which contains 22 as substring.

Together with 23005517, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23005493 and 23005502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23005517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502759 + 11502760.

It is an arithmetic number, because the mean of its divisors is an integer number (11502760).

Almost surely, 2^23005519 is an apocalyptic number.

23005519 is a deficient number, since it is larger than the sum of its proper divisors (1).

23005519 is an equidigital number, since it uses as much as digits as its factorization.

23005519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 23005519 is about 4796.4068843250. The cubic root of 23005519 is about 284.4094429803.

The spelling of 23005519 in words is "twenty-three million, five thousand, five hundred nineteen".