1632725569 has 2 divisors, whose sum is σ = 1632725570. Its totient is φ = 1632725568.

The previous prime is 1632725513. The next prime is 1632725597. The reversal of 1632725569 is 9655272361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1202702400 + 430023169 = 34680^2 + 20737^2 .

It is a cyclic number.

It is not a de Polignac number, because 1632725569 - 2¹⁹ = 1632201281 is a prime.

It is a super-2 number, since 2×1632725569² = 5331585567332747522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1632725599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816362784 + 816362785.

It is an arithmetic number, because the mean of its divisors is an integer number (816362785).

Almost surely, 2^1632725569 is an apocalyptic number.

It is an amenable number.

1632725569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1632725569 is an equidigital number, since it uses as much as digits as its factorization.

1632725569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The square root of 1632725569 is about 40406.9990100725. Note that the first 3 decimals coincide. The cubic root of 1632725569 is about 1177.5275168733.

The spelling of 1632725569 in words is "one billion, six hundred thirty-two million, seven hundred twenty-five thousand, five hundred sixty-nine".