49555993 has 2 divisors, whose sum is σ = 49555994. Its totient is φ = 49555992.

The previous prime is 49555991. The next prime is 49555999. The reversal of 49555993 is 39955594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43665664 + 5890329 = 6608^2 + 2427^2 .

It is a cyclic number.

It is not a de Polignac number, because 49555993 - 2¹ = 49555991 is a prime.

Together with 49555991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49555991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24777996 + 24777997.

It is an arithmetic number, because the mean of its divisors is an integer number (24777997).

Almost surely, 2^49555993 is an apocalyptic number.

It is an amenable number.

49555993 is a deficient number, since it is larger than the sum of its proper divisors (1).

49555993 is an equidigital number, since it uses as much as digits as its factorization.

49555993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1093500, while the sum is 49.

The square root of 49555993 is about 7039.6017643046. The cubic root of 49555993 is about 367.3094154260.

The spelling of 49555993 in words is "forty-nine million, five hundred fifty-five thousand, nine hundred ninety-three".