80449519 has 2 divisors, whose sum is σ = 80449520. Its totient is φ = 80449518.

The previous prime is 80449483. The next prime is 80449529. The reversal of 80449519 is 91594408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80449519 - 2²¹ = 78352367 is a prime.

It is a super-2 number, since 2×80449519² = 12944250214662722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80449529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40224759 + 40224760.

It is an arithmetic number, because the mean of its divisors is an integer number (40224760).

Almost surely, 2^80449519 is an apocalyptic number.

80449519 is a deficient number, since it is larger than the sum of its proper divisors (1).

80449519 is an equidigital number, since it uses as much as digits as its factorization.

80449519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 80449519 is about 8969.3655851459. The cubic root of 80449519 is about 431.6924805468.

The spelling of 80449519 in words is "eighty million, four hundred forty-nine thousand, five hundred nineteen".