49479613 has 2 divisors, whose sum is σ = 49479614. Its totient is φ = 49479612.

The previous prime is 49479611. The next prime is 49479631. The reversal of 49479613 is 31697494.

Together with next prime (49479631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38962564 + 10517049 = 6242^2 + 3243^2 .

It is a cyclic number.

It is not a de Polignac number, because 49479613 - 2¹ = 49479611 is a prime.

Together with 49479611, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 49479613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49479611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24739806 + 24739807.

It is an arithmetic number, because the mean of its divisors is an integer number (24739807).

Almost surely, 2^49479613 is an apocalyptic number.

It is an amenable number.

49479613 is a deficient number, since it is larger than the sum of its proper divisors (1).

49479613 is an equidigital number, since it uses as much as digits as its factorization.

49479613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 49479613 is about 7034.1746495236. The cubic root of 49479613 is about 367.1206086679.

The spelling of 49479613 in words is "forty-nine million, four hundred seventy-nine thousand, six hundred thirteen".