20285200850 has 24 divisors (see below), whose sum is σ = 39716289840. Its totient is φ = 7687023120.

The previous prime is 20285200843. The next prime is 20285200891. The reversal of 20285200850 is 5800258202.

It is a happy number.

It is a super-2 number, since 2×20285200850² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10675472 + ... + 10677371.

It is an arithmetic number, because the mean of its divisors is an integer number (1654845410).

Almost surely, 2^20285200850 is an apocalyptic number.

20285200850 is a deficient number, since it is larger than the sum of its proper divisors (19431088990).

20285200850 is a wasteful number, since it uses less digits than its factorization.

20285200850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21352874 (or 21352869 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The spelling of 20285200850 in words is "twenty billion, two hundred eighty-five million, two hundred thousand, eight hundred fifty".