50551157 has 4 divisors (see below), whose sum is σ = 50609676. Its totient is φ = 50492640.

The previous prime is 50551133. The next prime is 50551159. The reversal of 50551157 is 75115505.

50551157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17901361 + 32649796 = 4231^2 + 5714^2 .

It is a cyclic number.

It is not a de Polignac number, because 50551157 - 2¹⁰ = 50550133 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 (50551159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27944 + ... + 29697.

It is an arithmetic number, because the mean of its divisors is an integer number (12652419).

Almost surely, 2^50551157 is an apocalyptic number.

It is an amenable number.

50551157 is a deficient number, since it is larger than the sum of its proper divisors (58519).

50551157 is an equidigital number, since it uses as much as digits as its factorization.

50551157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58518.

The product of its (nonzero) digits is 4375, while the sum is 29.

The square root of 50551157 is about 7109.9336846415. The cubic root of 50551157 is about 369.7518594313.

The spelling of 50551157 in words is "fifty million, five hundred fifty-one thousand, one hundred fifty-seven".