20832216825 has 24 divisors (see below), whose sum is σ = 39362970688. Its totient is φ = 9523298880.

The previous prime is 20832216767. The next prime is 20832216859. The reversal of 20832216825 is 52861223802.

It is not a de Polignac number, because 20832216825 - 2¹⁵ = 20832184057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19839682 + ... + 19840731.

Almost surely, 2^20832216825 is an apocalyptic number.

20832216825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20832216825 is a deficient number, since it is larger than the sum of its proper divisors (18530753863).

20832216825 is a wasteful number, since it uses less digits than its factorization.

20832216825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39680433 (or 39680428 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 20832216825 in words is "twenty billion, eight hundred thirty-two million, two hundred sixteen thousand, eight hundred twenty-five".