50897772 has 18 divisors (see below), whose sum is σ = 128658348. Its totient is φ = 16965912.

The previous prime is 50897771. The next prime is 50897773. The reversal of 50897772 is 27779805.

50897772 is a `hidden beast` number, since 508 + 9 + 77 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (50897771) and next prime (50897773).

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (50897771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 706878 + ... + 706949.

It is an arithmetic number, because the mean of its divisors is an integer number (7147686).

Almost surely, 2^50897772 is an apocalyptic number.

It is an amenable number.

50897772 is an abundant number, since it is smaller than the sum of its proper divisors (77760576).

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

50897772 is a wasteful number, since it uses less digits than its factorization.

50897772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413837 (or 1413832 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 50897772 is about 7134.2674466269. The cubic root of 50897772 is about 370.5950299052.

The spelling of 50897772 in words is "fifty million, eight hundred ninety-seven thousand, seven hundred seventy-two".