49696181 has 2 divisors, whose sum is σ = 49696182. Its totient is φ = 49696180.

The previous prime is 49696177. The next prime is 49696187. The reversal of 49696181 is 18169694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27133681 + 22562500 = 5209^2 + 4750^2 .

It is a cyclic number.

It is not a de Polignac number, because 49696181 - 2² = 49696177 is a prime.

It is a super-2 number, since 2×49696181² = 4939420811969522, which contains 22 as substring.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49696187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24848090 + 24848091.

It is an arithmetic number, because the mean of its divisors is an integer number (24848091).

Almost surely, 2^49696181 is an apocalyptic number.

It is an amenable number.

49696181 is a deficient number, since it is larger than the sum of its proper divisors (1).

49696181 is an equidigital number, since it uses as much as digits as its factorization.

49696181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 44.

The square root of 49696181 is about 7049.5518297265. The cubic root of 49696181 is about 367.6554475277.

The spelling of 49696181 in words is "forty-nine million, six hundred ninety-six thousand, one hundred eighty-one".