50955591 has 4 divisors (see below), whose sum is σ = 67940792. Its totient is φ = 33970392.

The previous prime is 50955589. The next prime is 50955601. The reversal of 50955591 is 19555905.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 50955591 - 2¹ = 50955589 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 (50955521) 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 3 ways as a sum of consecutive naturals, for example, 8492596 + ... + 8492601.

It is an arithmetic number, because the mean of its divisors is an integer number (16985198).

Almost surely, 2^50955591 is an apocalyptic number.

50955591 is a deficient number, since it is larger than the sum of its proper divisors (16985201).

50955591 is a wasteful number, since it uses less digits than its factorization.

50955591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16985200.

The product of its (nonzero) digits is 50625, while the sum is 39.

The square root of 50955591 is about 7138.3184994787. The cubic root of 50955591 is about 370.7353066768.

The spelling of 50955591 in words is "fifty million, nine hundred fifty-five thousand, five hundred ninety-one".