50120661 has 4 divisors (see below), whose sum is σ = 66827552. Its totient is φ = 33413772.

The previous prime is 50120647. The next prime is 50120663. The reversal of 50120661 is 16602105.

It is a happy number.

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 not a de Polignac number, because 50120661 - 2¹⁸ = 49858517 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 (50120663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8353441 + ... + 8353446.

It is an arithmetic number, because the mean of its divisors is an integer number (16706888).

Almost surely, 2^50120661 is an apocalyptic number.

It is an amenable number.

50120661 is a deficient number, since it is larger than the sum of its proper divisors (16706891).

50120661 is a wasteful number, since it uses less digits than its factorization.

50120661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16706890.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 50120661 is about 7079.5946917885. The cubic root of 50120661 is about 368.6992577502.

Adding to 50120661 its reverse (16602105), we get a palindrome (66722766).

The spelling of 50120661 in words is "fifty million, one hundred twenty thousand, six hundred sixty-one".