49279519 has 2 divisors, whose sum is σ = 49279520. Its totient is φ = 49279518.

The previous prime is 49279513. The next prime is 49279561. The reversal of 49279519 is 91597294.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49279519 - 2⁵ = 49279487 is a prime.

It is a super-2 number, since 2×49279519² = 4856941985742722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49279513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24639759 + 24639760.

It is an arithmetic number, because the mean of its divisors is an integer number (24639760).

Almost surely, 2^49279519 is an apocalyptic number.

49279519 is a deficient number, since it is larger than the sum of its proper divisors (1).

49279519 is an equidigital number, since it uses as much as digits as its factorization.

49279519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 46.

The square root of 49279519 is about 7019.9372504318. The cubic root of 49279519 is about 366.6250653444.

The spelling of 49279519 in words is "forty-nine million, two hundred seventy-nine thousand, five hundred nineteen".