50491800 has 72 divisors (see below), whose sum is σ = 169574340. Its totient is φ = 13464000.

The previous prime is 50491789. The next prime is 50491801. The reversal of 50491800 is 819405.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50491801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12226 + ... + 15825.

Almost surely, 2^50491800 is an apocalyptic number.

50491800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50491800 is an abundant number, since it is smaller than the sum of its proper divisors (119082540).

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

50491800 is a wasteful number, since it uses less digits than its factorization.

50491800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28073 (or 28061 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 50491800 is about 7105.7582283666. The cubic root of 50491800 is about 369.6070822840.

The spelling of 50491800 in words is "fifty million, four hundred ninety-one thousand, eight hundred".