50553687 has 4 divisors (see below), whose sum is σ = 67404920. Its totient is φ = 33702456.

The previous prime is 50553649. The next prime is 50553709. The reversal of 50553687 is 78635505.

50553687 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 is not a de Polignac number, because 50553687 - 2¹¹ = 50551639 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 (50553617) 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, 8425612 + ... + 8425617.

It is an arithmetic number, because the mean of its divisors is an integer number (16851230).

Almost surely, 2^50553687 is an apocalyptic number.

50553687 is a deficient number, since it is larger than the sum of its proper divisors (16851233).

50553687 is a wasteful number, since it uses less digits than its factorization.

50553687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16851232.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 50553687 is about 7110.1116024996. Note that the first 3 decimals coincide. The cubic root of 50553687 is about 369.7580278137.

The spelling of 50553687 in words is "fifty million, five hundred fifty-three thousand, six hundred eighty-seven".