49458191 has 2 divisors, whose sum is σ = 49458192. Its totient is φ = 49458190.

The previous prime is 49458181. The next prime is 49458203. The reversal of 49458191 is 19185494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49458191 - 2¹⁰ = 49457167 is a prime.

It is a super-2 number, since 2×49458191² = 4892225313984962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49458131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24729095 + 24729096.

It is an arithmetic number, because the mean of its divisors is an integer number (24729096).

Almost surely, 2^49458191 is an apocalyptic number.

49458191 is a deficient number, since it is larger than the sum of its proper divisors (1).

49458191 is an equidigital number, since it uses as much as digits as its factorization.

49458191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 49458191 is about 7032.6517758240. The cubic root of 49458191 is about 367.0676198883.

It can be divided in two parts, 494 and 58191, that added together give a palindrome (58685).

The spelling of 49458191 in words is "forty-nine million, four hundred fifty-eight thousand, one hundred ninety-one".