50778000 has 480 divisors, whose sum is σ = 225318912. Its totient is φ = 10368000.

The previous prime is 50777983. The next prime is 50778017. The reversal of 50778000 is 87705.

It is an interprime number because it is at equal distance from previous prime (50777983) and next prime (50778017).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1637985 + ... + 1638015.

Almost surely, 2^50778000 is an apocalyptic number.

50778000 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 50778000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112659456).

50778000 is an abundant number, since it is smaller than the sum of its proper divisors (174540912).

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

50778000 is a wasteful number, since it uses less digits than its factorization.

50778000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 50778000 is about 7125.8683681359. The cubic root of 50778000 is about 370.3041083929.

The spelling of 50778000 in words is "fifty million, seven hundred seventy-eight thousand".