50783557 has 4 divisors (see below), whose sum is σ = 55400256. Its totient is φ = 46166860.

The previous prime is 50783533. The next prime is 50783569. The reversal of 50783557 is 75538705.

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 50783557 - 2¹⁵ = 50750789 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50783527) 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, 2308333 + ... + 2308354.

It is an arithmetic number, because the mean of its divisors is an integer number (13850064).

Almost surely, 2^50783557 is an apocalyptic number.

It is an amenable number.

50783557 is a deficient number, since it is larger than the sum of its proper divisors (4616699).

50783557 is a wasteful number, since it uses less digits than its factorization.

50783557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616698.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 50783557 is about 7126.2582748593. The cubic root of 50783557 is about 370.3176162432.

The spelling of 50783557 in words is "fifty million, seven hundred eighty-three thousand, five hundred fifty-seven".