50820687 has 24 divisors (see below), whose sum is σ = 79772160. Its totient is φ = 31058640.

The previous prime is 50820683. The next prime is 50820697. The reversal of 50820687 is 78602805.

It is not a de Polignac number, because 50820687 - 2² = 50820683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50820683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508 + ... + 10094.

It is an arithmetic number, because the mean of its divisors is an integer number (3323840).

Almost surely, 2^50820687 is an apocalyptic number.

50820687 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

50820687 is a deficient number, since it is larger than the sum of its proper divisors (28951473).

50820687 is a wasteful number, since it uses less digits than its factorization.

50820687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9643 (or 9640 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 50820687 is about 7128.8629528137. The cubic root of 50820687 is about 370.4078458649.

The spelling of 50820687 in words is "fifty million, eight hundred twenty thousand, six hundred eighty-seven".