49543591 has 2 divisors, whose sum is σ = 49543592. Its totient is φ = 49543590.

The previous prime is 49543579. The next prime is 49543597. The reversal of 49543591 is 19534594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49543591 - 2⁹ = 49543079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49543597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24771795 + 24771796.

It is an arithmetic number, because the mean of its divisors is an integer number (24771796).

Almost surely, 2^49543591 is an apocalyptic number.

49543591 is a deficient number, since it is larger than the sum of its proper divisors (1).

49543591 is an equidigital number, since it uses as much as digits as its factorization.

49543591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 49543591 is about 7038.7208354928. The cubic root of 49543591 is about 367.2787716286.

The spelling of 49543591 in words is "forty-nine million, five hundred forty-three thousand, five hundred ninety-one".