54171441511557 has 8 divisors (see below), whose sum is σ = 72233489914176. Its totient is φ = 36111843724992.

The previous prime is 54171441511553. The next prime is 54171441511573. The reversal of 54171441511557 is 75511514417145.

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

It is not a de Polignac number, because 54171441511557 - 2² = 54171441511553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54171441511553) 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, 612602433 + ... + 612690854.

It is an arithmetic number, because the mean of its divisors is an integer number (9029186239272).

Almost surely, 2^{54171441511557} is an apocalyptic number.

It is an amenable number.

54171441511557 is a deficient number, since it is larger than the sum of its proper divisors (18062048402619).

54171441511557 is a wasteful number, since it uses less digits than its factorization.

54171441511557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225308027.

The product of its digits is 1960000, while the sum is 51.

The spelling of 54171441511557 in words is "fifty-four trillion, one hundred seventy-one billion, four hundred forty-one million, five hundred eleven thousand, five hundred fifty-seven".