2065531172 has 6 divisors (see below), whose sum is σ = 3614679558. Its totient is φ = 1032765584.

The previous prime is 2065531163. The next prime is 2065531183. The reversal of 2065531172 is 2711355602.

It can be written as a sum of positive squares in only one way, i.e., 1997732416 + 67798756 = 44696^2 + 8234^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258191393 + ... + 258191400.

It is an arithmetic number, because the mean of its divisors is an integer number (602446593).

Almost surely, 2^2065531172 is an apocalyptic number.

It is an amenable number.

2065531172 is a deficient number, since it is larger than the sum of its proper divisors (1549148386).

2065531172 is a wasteful number, since it uses less digits than its factorization.

2065531172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516382797 (or 516382795 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 2065531172 is about 45448.1151644378. The cubic root of 2065531172 is about 1273.5341188694.

Adding to 2065531172 its reverse (2711355602), we get a palindrome (4776886774).

The spelling of 2065531172 in words is "two billion, sixty-five million, five hundred thirty-one thousand, one hundred seventy-two".