49970009 has 2 divisors, whose sum is σ = 49970010. Its totient is φ = 49970008.

The previous prime is 49969951. The next prime is 49970027. The reversal of 49970009 is 90007994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25000000 + 24970009 = 5000^2 + 4997^2 .

It is a cyclic number.

It is not a de Polignac number, because 49970009 - 2²⁴ = 33192793 is a prime.

It is not a weakly prime, because it can be changed into another prime (49972009) 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, 24985004 + 24985005.

It is an arithmetic number, because the mean of its divisors is an integer number (24985005).

Almost surely, 2^49970009 is an apocalyptic number.

It is an amenable number.

49970009 is a deficient number, since it is larger than the sum of its proper divisors (1).

49970009 is an equidigital number, since it uses as much as digits as its factorization.

49970009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 49970009 is about 7068.9468098154. The cubic root of 49970009 is about 368.3294766061.

The spelling of 49970009 in words is "forty-nine million, nine hundred seventy thousand, nine".