50959681 has 4 divisors (see below), whose sum is σ = 50974000. Its totient is φ = 50945364.

The previous prime is 50959627. The next prime is 50959739. The reversal of 50959681 is 18695905.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 50959681 - 2¹¹ = 50957633 is a prime.

It is a super-2 number, since 2×50959681² = 5193778175243522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50959781) 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, 2770 + ... + 10468.

It is an arithmetic number, because the mean of its divisors is an integer number (12743500).

Almost surely, 2^50959681 is an apocalyptic number.

It is an amenable number.

50959681 is a deficient number, since it is larger than the sum of its proper divisors (14319).

50959681 is an equidigital number, since it uses as much as digits as its factorization.

50959681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14318.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 50959681 is about 7138.6049757638. The cubic root of 50959681 is about 370.7452255546.

The spelling of 50959681 in words is "fifty million, nine hundred fifty-nine thousand, six hundred eighty-one".