50288778 has 24 divisors (see below), whose sum is σ = 111279168. Its totient is φ = 16405992.

The previous prime is 50288761. The next prime is 50288779. The reversal of 50288778 is 87788205.

It is a happy number.

It is a super-2 number, since 2×50288778² = 5057922385466568, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50288779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28876 + ... + 30567.

It is an arithmetic number, because the mean of its divisors is an integer number (4636632).

Almost surely, 2^50288778 is an apocalyptic number.

50288778 is an abundant number, since it is smaller than the sum of its proper divisors (60990390).

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

50288778 is a wasteful number, since it uses less digits than its factorization.

50288778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59498 (or 59495 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 50288778 is about 7091.4581011242. The cubic root of 50288778 is about 369.1110336318. Note that the first 3 decimals are identical.

The spelling of 50288778 in words is "fifty million, two hundred eighty-eight thousand, seven hundred seventy-eight".