49649623 has 2 divisors, whose sum is σ = 49649624. Its totient is φ = 49649622.

The previous prime is 49649591. The next prime is 49649627. The reversal of 49649623 is 32694694.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49649623 - 2⁵ = 49649591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49649623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49649627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24824811 + 24824812.

It is an arithmetic number, because the mean of its divisors is an integer number (24824812).

Almost surely, 2^49649623 is an apocalyptic number.

49649623 is a deficient number, since it is larger than the sum of its proper divisors (1).

49649623 is an equidigital number, since it uses as much as digits as its factorization.

49649623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 49649623 is about 7046.2488602092. The cubic root of 49649623 is about 367.5405986585.

The spelling of 49649623 in words is "forty-nine million, six hundred forty-nine thousand, six hundred twenty-three".