49085497217 has 4 divisors (see below), whose sum is σ = 49154729940. Its totient is φ = 49016264496.

The previous prime is 49085497189. The next prime is 49085497259. The reversal of 49085497217 is 71279458094.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26156269441 + 22929227776 = 161729^2 + 151424^2 .

It is a cyclic number.

It is not a de Polignac number, because 49085497217 - 2¹⁴ = 49085480833 is a prime.

It is a super-2 number, since 2×49085497217² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49085497297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34615298 + ... + 34616715.

It is an arithmetic number, because the mean of its divisors is an integer number (12288682485).

Almost surely, 2^49085497217 is an apocalyptic number.

It is an amenable number.

49085497217 is a deficient number, since it is larger than the sum of its proper divisors (69232723).

49085497217 is an equidigital number, since it uses as much as digits as its factorization.

49085497217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69232722.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 49085497217 in words is "forty-nine billion, eighty-five million, four hundred ninety-seven thousand, two hundred seventeen".