555132161 has 8 divisors (see below), whose sum is σ = 588003624. Its totient is φ = 522284800.

The previous prime is 555132143. The next prime is 555132203. The reversal of 555132161 is 161231555.

It can be written as a sum of positive squares in 4 ways, for example, as 264225025 + 290907136 = 16255^2 + 17056^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555132161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555137161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66311 + ... + 74211.

It is an arithmetic number, because the mean of its divisors is an integer number (73500453).

Almost surely, 2^555132161 is an apocalyptic number.

It is an amenable number.

555132161 is a deficient number, since it is larger than the sum of its proper divisors (32871463).

555132161 is a wasteful number, since it uses less digits than its factorization.

555132161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051.

The product of its digits is 4500, while the sum is 29.

The square root of 555132161 is about 23561.2427728250. The cubic root of 555132161 is about 821.8618022159.

The spelling of 555132161 in words is "five hundred fifty-five million, one hundred thirty-two thousand, one hundred sixty-one".