50018956249 has 4 divisors (see below), whose sum is σ = 50019466420. Its totient is φ = 50018446080.

The previous prime is 50018956237. The next prime is 50018956301. The reversal of 50018956249 is 94265981005.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18855409225 + 31163547024 = 137315^2 + 176532^2 .

It is a cyclic number.

It is not a de Polignac number, because 50018956249 - 2¹⁵ = 50018923481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50018956849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56472 + ... + 321289.

It is an arithmetic number, because the mean of its divisors is an integer number (12504866605).

Almost surely, 2^50018956249 is an apocalyptic number.

It is an amenable number.

50018956249 is a deficient number, since it is larger than the sum of its proper divisors (510171).

50018956249 is a wasteful number, since it uses less digits than its factorization.

50018956249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510170.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 50018956249 in words is "fifty billion, eighteen million, nine hundred fifty-six thousand, two hundred forty-nine".