49561777 has 4 divisors (see below), whose sum is σ = 51160576. Its totient is φ = 47962980.

The previous prime is 49561751. The next prime is 49561781. The reversal of 49561777 is 77716594.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49561777 - 2¹⁵ = 49529009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49561717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799353 + ... + 799414.

It is an arithmetic number, because the mean of its divisors is an integer number (12790144).

Almost surely, 2^49561777 is an apocalyptic number.

It is an amenable number.

49561777 is a deficient number, since it is larger than the sum of its proper divisors (1598799).

49561777 is a wasteful number, since it uses less digits than its factorization.

49561777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598798.

The product of its digits is 370440, while the sum is 46.

The square root of 49561777 is about 7040.0125710115. The cubic root of 49561777 is about 367.3237052215.

The spelling of 49561777 in words is "forty-nine million, five hundred sixty-one thousand, seven hundred seventy-seven".