50778120 has 64 divisors (see below), whose sum is σ = 152881920. Its totient is φ = 13492224.

The previous prime is 50778113. The next prime is 50778121. The reversal of 50778120 is 2187705.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (50778121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43464 + ... + 44616.

It is an arithmetic number, because the mean of its divisors is an integer number (2388780).

Almost surely, 2^50778120 is an apocalyptic number.

It is an amenable number.

50778120 is an abundant number, since it is smaller than the sum of its proper divisors (102103800).

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

50778120 is a wasteful number, since it uses less digits than its factorization.

50778120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 50778120 is about 7125.8767881574. The cubic root of 50778120 is about 370.3044000970.

The spelling of 50778120 in words is "fifty million, seven hundred seventy-eight thousand, one hundred twenty".