50780000 has 60 divisors (see below), whose sum is σ = 124975620. Its totient is φ = 20304000.

The previous prime is 50779997. The next prime is 50780011. The reversal of 50780000 is 8705.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18731 + ... + 21269.

It is an arithmetic number, because the mean of its divisors is an integer number (2082927).

Almost surely, 2^50780000 is an apocalyptic number.

50780000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62487810).

50780000 is an abundant number, since it is smaller than the sum of its proper divisors (74195620).

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

50780000 is an equidigital number, since it uses as much as digits as its factorization.

50780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 50780000 is about 7126.0087005279. The cubic root of 50780000 is about 370.3089700685.

Adding to 50780000 its reverse (8705), we get a palindrome (50788705).

The spelling of 50780000 in words is "fifty million, seven hundred eighty thousand".