49777447 has 2 divisors, whose sum is σ = 49777448. Its totient is φ = 49777446.

The previous prime is 49777423. The next prime is 49777471. The reversal of 49777447 is 74477794.

It is a balanced prime because it is at equal distance from previous prime (49777423) and next prime (49777471).

It is a cyclic number.

It is not a de Polignac number, because 49777447 - 2¹⁹ = 49253159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49777447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49777417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24888723 + 24888724.

It is an arithmetic number, because the mean of its divisors is an integer number (24888724).

Almost surely, 2^49777447 is an apocalyptic number.

49777447 is a deficient number, since it is larger than the sum of its proper divisors (1).

49777447 is an equidigital number, since it uses as much as digits as its factorization.

49777447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382976, while the sum is 49.

The square root of 49777447 is about 7055.3133877950. The cubic root of 49777447 is about 367.8557420358.

The spelling of 49777447 in words is "forty-nine million, seven hundred seventy-seven thousand, four hundred forty-seven".