50505387 has 16 divisors (see below), whose sum is σ = 68250240. Its totient is φ = 33219072.

The previous prime is 50505379. The next prime is 50505397. The reversal of 50505387 is 78350505.

It is not a de Polignac number, because 50505387 - 2³ = 50505379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50505397) 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, 87243 + ... + 87819.

It is an arithmetic number, because the mean of its divisors is an integer number (4265640).

Almost surely, 2^50505387 is an apocalyptic number.

50505387 is a deficient number, since it is larger than the sum of its proper divisors (17744853).

50505387 is a wasteful number, since it uses less digits than its factorization.

50505387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 50505387 is about 7106.7142196658. The cubic root of 50505387 is about 369.6402322282.

The spelling of 50505387 in words is "fifty million, five hundred five thousand, three hundred eighty-seven".