49213013 has 2 divisors, whose sum is σ = 49213014. Its totient is φ = 49213012.

The previous prime is 49213009. The next prime is 49213033. The reversal of 49213013 is 31031294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35022724 + 14190289 = 5918^2 + 3767^2 .

It is a cyclic number.

It is not a de Polignac number, because 49213013 - 2² = 49213009 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49213013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49213033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24606506 + 24606507.

It is an arithmetic number, because the mean of its divisors is an integer number (24606507).

Almost surely, 2^49213013 is an apocalyptic number.

It is an amenable number.

49213013 is a deficient number, since it is larger than the sum of its proper divisors (1).

49213013 is an equidigital number, since it uses as much as digits as its factorization.

49213013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 49213013 is about 7015.1987142204. The cubic root of 49213013 is about 366.4600627629.

The spelling of 49213013 in words is "forty-nine million, two hundred thirteen thousand, thirteen".