50651561 has 8 divisors (see below), whose sum is σ = 52001280. Its totient is φ = 49319712.

The previous prime is 50651527. The next prime is 50651563. The reversal of 50651561 is 16515605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50651561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50651563) 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 7 ways as a sum of consecutive naturals, for example, 1376 + ... + 10158.

It is an arithmetic number, because the mean of its divisors is an integer number (6500160).

Almost surely, 2^50651561 is an apocalyptic number.

It is an amenable number.

50651561 is a deficient number, since it is larger than the sum of its proper divisors (1349719).

50651561 is an equidigital number, since it uses as much as digits as its factorization.

50651561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8935.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 50651561 is about 7116.9910074413. The cubic root of 50651561 is about 369.9964961928.

The spelling of 50651561 in words is "fifty million, six hundred fifty-one thousand, five hundred sixty-one".