49810169 has 2 divisors, whose sum is σ = 49810170. Its totient is φ = 49810168.

The previous prime is 49810147. The next prime is 49810171. The reversal of 49810169 is 96101894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47886400 + 1923769 = 6920^2 + 1387^2 .

It is a cyclic number.

It is not a de Polignac number, because 49810169 - 2⁸ = 49809913 is a prime.

It is a super-2 number, since 2×49810169² = 4962105871617122, which contains 22 as substring.

Together with 49810171, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (49810129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24905084 + 24905085.

It is an arithmetic number, because the mean of its divisors is an integer number (24905085).

Almost surely, 2^49810169 is an apocalyptic number.

It is an amenable number.

49810169 is a deficient number, since it is larger than the sum of its proper divisors (1).

49810169 is an equidigital number, since it uses as much as digits as its factorization.

49810169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 49810169 is about 7057.6319683021. The cubic root of 49810169 is about 367.9363296627.

The spelling of 49810169 in words is "forty-nine million, eight hundred ten thousand, one hundred sixty-nine".