33856223825 has 12 divisors (see below), whose sum is σ = 41999335308. Its totient is φ = 27073612800.

The previous prime is 33856223803. The next prime is 33856223839. The reversal of 33856223825 is 52832265833.

It can be written as a sum of positive squares in 6 ways, for example, as 9861284416 + 23994939409 = 99304^2 + 154903^2 .

It is not a de Polignac number, because 33856223825 - 2¹⁶ = 33856158289 is a prime.

It is a super-2 number, since 2×33856223825² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33856223825.

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, 223136 + ... + 342785.

It is an arithmetic number, because the mean of its divisors is an integer number (3499944609).

Almost surely, 2^33856223825 is an apocalyptic number.

It is an amenable number.

33856223825 is a deficient number, since it is larger than the sum of its proper divisors (8143111483).

33856223825 is a wasteful number, since it uses less digits than its factorization.

33856223825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568324 (or 568319 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The spelling of 33856223825 in words is "thirty-three billion, eight hundred fifty-six million, two hundred twenty-three thousand, eight hundred twenty-five".