50621800 has 24 divisors (see below), whose sum is σ = 117696150. Its totient is φ = 20248640.

The previous prime is 50621797. The next prime is 50621821. The reversal of 50621800 is 812605.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 49308484 + 1313316 = 7022^2 + 1146^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126355 + ... + 126754.

Almost surely, 2^50621800 is an apocalyptic number.

50621800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50621800 is an abundant number, since it is smaller than the sum of its proper divisors (67074350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50621800 is a wasteful number, since it uses less digits than its factorization.

50621800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253125 (or 253116 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 50621800 is about 7114.8998587471. The cubic root of 50621800 is about 369.9240165373.

The spelling of 50621800 in words is "fifty million, six hundred twenty-one thousand, eight hundred".