49963181 has 2 divisors, whose sum is σ = 49963182. Its totient is φ = 49963180.

The previous prime is 49963163. The next prime is 49963183. The reversal of 49963181 is 18136994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28526281 + 21436900 = 5341^2 + 4630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49963181 is a prime.

It is a super-2 number, since 2×49963181² = 4992638911277522, which contains 22 as substring.

Together with 49963183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49963183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24981590 + 24981591.

It is an arithmetic number, because the mean of its divisors is an integer number (24981591).

Almost surely, 2^49963181 is an apocalyptic number.

It is an amenable number.

49963181 is a deficient number, since it is larger than the sum of its proper divisors (1).

49963181 is an equidigital number, since it uses as much as digits as its factorization.

49963181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 41.

The square root of 49963181 is about 7068.4638359406. The cubic root of 49963181 is about 368.3126994213.

The spelling of 49963181 in words is "forty-nine million, nine hundred sixty-three thousand, one hundred eighty-one".