5200021646 has 4 divisors (see below), whose sum is σ = 7800032472. Its totient is φ = 2600010822.

The previous prime is 5200021613. The next prime is 5200021657. The reversal of 5200021646 is 6461200025.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300005410 + ... + 1300005413.

It is an arithmetic number, because the mean of its divisors is an integer number (1950008118).

Almost surely, 2^5200021646 is an apocalyptic number.

5200021646 is a deficient number, since it is larger than the sum of its proper divisors (2600010826).

5200021646 is a wasteful number, since it uses less digits than its factorization.

5200021646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600010825.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 5200021646 is about 72111.1755971292. The cubic root of 5200021646 is about 1732.4806146030.

The spelling of 5200021646 in words is "five billion, two hundred million, twenty-one thousand, six hundred forty-six".