50666540 has 48 divisors (see below), whose sum is σ = 112869120. Its totient is φ = 19051200.

The previous prime is 50666531. The next prime is 50666557. The reversal of 50666540 is 4566605.

It is a junction number, because it is equal to n+sod(n) for n = 50666497 and 50666506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56939 + ... + 57821.

It is an arithmetic number, because the mean of its divisors is an integer number (2351440).

Almost surely, 2^50666540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50666540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56434560).

50666540 is an abundant number, since it is smaller than the sum of its proper divisors (62202580).

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

50666540 is a wasteful number, since it uses less digits than its factorization.

50666540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 50666540 is about 7118.0432704501. The cubic root of 50666540 is about 370.0329651661.

The spelling of 50666540 in words is "fifty million, six hundred sixty-six thousand, five hundred forty".