50650581 has 4 divisors (see below), whose sum is σ = 67534112. Its totient is φ = 33767052.

The previous prime is 50650573. The next prime is 50650583. The reversal of 50650581 is 18505605.

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 50650581 - 2³ = 50650573 is a prime.

It is a super-2 number, since 2×50650581² = 5130962711275122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50650583) 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, 8441761 + ... + 8441766.

It is an arithmetic number, because the mean of its divisors is an integer number (16883528).

Almost surely, 2^50650581 is an apocalyptic number.

It is an amenable number.

50650581 is a deficient number, since it is larger than the sum of its proper divisors (16883531).

50650581 is a wasteful number, since it uses less digits than its factorization.

50650581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16883530.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 50650581 is about 7116.9221577870. The cubic root of 50650581 is about 369.9941099622.

The spelling of 50650581 in words is "fifty million, six hundred fifty thousand, five hundred eighty-one".