50116661 has 12 divisors (see below), whose sum is σ = 61368480. Its totient is φ = 40695480.

The previous prime is 50116639. The next prime is 50116667. The reversal of 50116661 is 16661105.

It is a de Polignac number, because none of the positive numbers 2^k-50116661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50116661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50116667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25985 + ... + 27846.

It is an arithmetic number, because the mean of its divisors is an integer number (5114040).

Almost surely, 2^50116661 is an apocalyptic number.

It is an amenable number.

50116661 is a deficient number, since it is larger than the sum of its proper divisors (11251819).

50116661 is a wasteful number, since it uses less digits than its factorization.

50116661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53864 (or 53857 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 50116661 is about 7079.3121841038. The cubic root of 50116661 is about 368.6894491787.

Adding to 50116661 its reverse (16661105), we get a palindrome (66777766).

The spelling of 50116661 in words is "fifty million, one hundred sixteen thousand, six hundred sixty-one".