49855213 has 2 divisors, whose sum is σ = 49855214. Its totient is φ = 49855212.

The previous prime is 49855207. The next prime is 49855229. The reversal of 49855213 is 31255894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25431849 + 24423364 = 5043^2 + 4942^2 .

It is a cyclic number.

It is not a de Polignac number, because 49855213 - 2¹⁷ = 49724141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49852213) 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, 24927606 + 24927607.

It is an arithmetic number, because the mean of its divisors is an integer number (24927607).

Almost surely, 2^49855213 is an apocalyptic number.

It is an amenable number.

49855213 is a deficient number, since it is larger than the sum of its proper divisors (1).

49855213 is an equidigital number, since it uses as much as digits as its factorization.

49855213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 49855213 is about 7060.8224025251. The cubic root of 49855213 is about 368.0472061568.

The spelling of 49855213 in words is "forty-nine million, eight hundred fifty-five thousand, two hundred thirteen".