54171633561722 has 4 divisors (see below), whose sum is σ = 81257450342586. Its totient is φ = 27085816780860.

The previous prime is 54171633561697. The next prime is 54171633561733. The reversal of 54171633561722 is 22716533617145.

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., 27982735196641 + 26188898365081 = 5289871^2 + 5117509^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13542908390429 + ... + 13542908390432.

Almost surely, 2^{54171633561722} is an apocalyptic number.

54171633561722 is a deficient number, since it is larger than the sum of its proper divisors (27085816780864).

54171633561722 is a wasteful number, since it uses less digits than its factorization.

54171633561722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27085816780863.

The product of its digits is 6350400, while the sum is 53.

The spelling of 54171633561722 in words is "fifty-four trillion, one hundred seventy-one billion, six hundred thirty-three million, five hundred sixty-one thousand, seven hundred twenty-two".