49926217585 has 4 divisors (see below), whose sum is σ = 59911461108. Its totient is φ = 39940974064.

The previous prime is 49926217567. The next prime is 49926217589. The reversal of 49926217585 is 58571262994.

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 22814289936 + 27111927649 = 151044^2 + 164657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49926217585 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49926217589) 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, 4992621754 + ... + 4992621763.

It is an arithmetic number, because the mean of its divisors is an integer number (14977865277).

Almost surely, 2^49926217585 is an apocalyptic number.

It is an amenable number.

49926217585 is a deficient number, since it is larger than the sum of its proper divisors (9985243523).

49926217585 is an equidigital number, since it uses as much as digits as its factorization.

49926217585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9985243522.

The product of its digits is 10886400, while the sum is 58.

The spelling of 49926217585 in words is "forty-nine billion, nine hundred twenty-six million, two hundred seventeen thousand, five hundred eighty-five".