2805612201 has 32 divisors (see below), whose sum is σ = 4768389120. Its totient is φ = 1597082832.

The previous prime is 2805612193. The next prime is 2805612217. The reversal of 2805612201 is 1022165082.

It is a happy number.

2805612201 is a `hidden beast` number, since 2 + 80 + 561 + 2 + 20 + 1 = 666.

It is not a de Polignac number, because 2805612201 - 2³ = 2805612193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2805610201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21486 + ... + 77928.

It is an arithmetic number, because the mean of its divisors is an integer number (149012160).

Almost surely, 2^2805612201 is an apocalyptic number.

2805612201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2805612201 is a deficient number, since it is larger than the sum of its proper divisors (1962776919).

2805612201 is a wasteful number, since it uses less digits than its factorization.

2805612201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56722 (or 56716 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2805612201 is about 52968.0299897967. The cubic root of 2805612201 is about 1410.4008050247.

Adding to 2805612201 its reverse (1022165082), we get a palindrome (3827777283).

The spelling of 2805612201 in words is "two billion, eight hundred five million, six hundred twelve thousand, two hundred one".