5215050666 has 24 divisors (see below), whose sum is σ = 12913459104. Its totient is φ = 1490014440.

The previous prime is 5215050653. The next prime is 5215050667. The reversal of 5215050666 is 6660505125.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5215050666.

It is not an unprimeable number, because it can be changed into a prime (5215050667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20694520 + ... + 20694771.

It is an arithmetic number, because the mean of its divisors is an integer number (538060796).

Almost surely, 2^5215050666 is an apocalyptic number.

5215050666 is an abundant number, since it is smaller than the sum of its proper divisors (7698408438).

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

5215050666 is a wasteful number, since it uses less digits than its factorization.

5215050666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41389306 (or 41389303 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 5215050666 is about 72215.3076985759. The cubic root of 5215050666 is about 1734.1480718690.

The spelling of 5215050666 in words is "five billion, two hundred fifteen million, fifty thousand, six hundred sixty-six".