50971830 has 64 divisors (see below), whose sum is σ = 150571008. Its totient is φ = 10753920.

The previous prime is 50971819. The next prime is 50971853. The reversal of 50971830 is 3817905.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50971791 and 50971800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6606 + ... + 12065.

It is an arithmetic number, because the mean of its divisors is an integer number (2352672).

Almost surely, 2^50971830 is an apocalyptic number.

50971830 is an abundant number, since it is smaller than the sum of its proper divisors (99599178).

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

50971830 is a wasteful number, since it uses less digits than its factorization.

50971830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18701.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 50971830 is about 7139.4558616186. The cubic root of 50971830 is about 370.7746856151.

The spelling of 50971830 in words is "fifty million, nine hundred seventy-one thousand, eight hundred thirty".