49447579 has 2 divisors, whose sum is σ = 49447580. Its totient is φ = 49447578.

The previous prime is 49447553. The next prime is 49447597. The reversal of 49447579 is 97574494.

49447579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (49447597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49447579 - 2²³ = 41058971 is a prime.

It is a super-2 number, since 2×49447579² = 4890126137922482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49447529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24723789 + 24723790.

It is an arithmetic number, because the mean of its divisors is an integer number (24723790).

Almost surely, 2^49447579 is an apocalyptic number.

49447579 is a deficient number, since it is larger than the sum of its proper divisors (1).

49447579 is an equidigital number, since it uses as much as digits as its factorization.

49447579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 49447579 is about 7031.8972546533. The cubic root of 49447579 is about 367.0413647145.

The spelling of 49447579 in words is "forty-nine million, four hundred forty-seven thousand, five hundred seventy-nine".