49133209 has 2 divisors, whose sum is σ = 49133210. Its totient is φ = 49133208.

The previous prime is 49133159. The next prime is 49133257. The reversal of 49133209 is 90233194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37210000 + 11923209 = 6100^2 + 3453^2 .

It is a cyclic number.

It is not a de Polignac number, because 49133209 - 2⁹ = 49132697 is a prime.

It is a super-3 number, since 3×49133209³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (49103209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24566604 + 24566605.

It is an arithmetic number, because the mean of its divisors is an integer number (24566605).

Almost surely, 2^49133209 is an apocalyptic number.

It is an amenable number.

49133209 is a deficient number, since it is larger than the sum of its proper divisors (1).

49133209 is an equidigital number, since it uses as much as digits as its factorization.

49133209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 49133209 is about 7009.5084706419. The cubic root of 49133209 is about 366.2618712736.

The spelling of 49133209 in words is "forty-nine million, one hundred thirty-three thousand, two hundred nine".