50681557 has 4 divisors (see below), whose sum is σ = 51759936. Its totient is φ = 49603180.

The previous prime is 50681537. The next prime is 50681597. The reversal of 50681557 is 75518605.

50681557 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50681557 - 2⁷ = 50681429 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 (50681537) 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, 539119 + ... + 539212.

It is an arithmetic number, because the mean of its divisors is an integer number (12939984).

Almost surely, 2^50681557 is an apocalyptic number.

It is an amenable number.

50681557 is a deficient number, since it is larger than the sum of its proper divisors (1078379).

50681557 is a wasteful number, since it uses less digits than its factorization.

50681557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078378.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 50681557 is about 7119.0980468034. The cubic root of 50681557 is about 370.0695194426.

The spelling of 50681557 in words is "fifty million, six hundred eighty-one thousand, five hundred fifty-seven".