50611442749 has 4 divisors (see below), whose sum is σ = 57841648864. Its totient is φ = 43381236636.

The previous prime is 50611442737. The next prime is 50611442773. The reversal of 50611442749 is 94724411605.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94724411605 = 5 ⋅18944882321.

It is a cyclic number.

It is not a de Polignac number, because 50611442749 - 2¹¹ = 50611440701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50611442779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3615103047 + ... + 3615103060.

It is an arithmetic number, because the mean of its divisors is an integer number (14460412216).

Almost surely, 2^50611442749 is an apocalyptic number.

It is an amenable number.

50611442749 is a deficient number, since it is larger than the sum of its proper divisors (7230206115).

50611442749 is an equidigital number, since it uses as much as digits as its factorization.

50611442749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230206114.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 50611442749 in words is "fifty billion, six hundred eleven million, four hundred forty-two thousand, seven hundred forty-nine".