49106009 has 2 divisors, whose sum is σ = 49106010. Its totient is φ = 49106008.

The previous prime is 49105981. The next prime is 49106027. The reversal of 49106009 is 90060194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43930384 + 5175625 = 6628^2 + 2275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49106009 is a prime.

It is a super-2 number, since 2×49106009² = 4822800239816162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49106209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24553004 + 24553005.

It is an arithmetic number, because the mean of its divisors is an integer number (24553005).

Almost surely, 2^49106009 is an apocalyptic number.

It is an amenable number.

49106009 is a deficient number, since it is larger than the sum of its proper divisors (1).

49106009 is an equidigital number, since it uses as much as digits as its factorization.

49106009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 49106009 is about 7007.5679804052. The cubic root of 49106009 is about 366.1942716328.

The spelling of 49106009 in words is "forty-nine million, one hundred six thousand, nine".