5161632506 has 4 divisors (see below), whose sum is σ = 7742448762. Its totient is φ = 2580816252.

The previous prime is 5161632503. The next prime is 5161632517. The reversal of 5161632506 is 6052361615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4107656281 + 1053976225 = 64091^2 + 32465^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5161632503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290408125 + ... + 1290408128.

Almost surely, 2^5161632506 is an apocalyptic number.

5161632506 is a deficient number, since it is larger than the sum of its proper divisors (2580816256).

5161632506 is a wasteful number, since it uses less digits than its factorization.

5161632506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580816255.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5161632506 is about 71844.5022670489. The cubic root of 5161632506 is about 1728.2067361410.

The spelling of 5161632506 in words is "five billion, one hundred sixty-one million, six hundred thirty-two thousand, five hundred six".