50811620 has 12 divisors (see below), whose sum is σ = 106704444. Its totient is φ = 20324640.

The previous prime is 50811617. The next prime is 50811659. The reversal of 50811620 is 2611805.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 44009956 = 2608^2 + 6634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270271 + ... + 1270310.

It is an arithmetic number, because the mean of its divisors is an integer number (8892037).

Almost surely, 2^50811620 is an apocalyptic number.

It is an amenable number.

50811620 is an abundant number, since it is smaller than the sum of its proper divisors (55892824).

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

50811620 is a wasteful number, since it uses less digits than its factorization.

50811620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540590 (or 2540588 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 50811620 is about 7128.2269885295. The cubic root of 50811620 is about 370.3858162028.

The spelling of 50811620 in words is "fifty million, eight hundred eleven thousand, six hundred twenty".