54105553474657 has 4 divisors (see below), whose sum is σ = 54244642301460. Its totient is φ = 53966464647856.

The previous prime is 54105553474639. The next prime is 54105553474673. The reversal of 54105553474657 is 75647435550145.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28996544904336 + 25109008570321 = 5384844^2 + 5010889^2 .

It is a cyclic number.

It is not a de Polignac number, because 54105553474657 - 2³⁹ = 53555797660769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54105553474595 and 54105553474604.

It is not an unprimeable number, because it can be changed into a prime (54105553474607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69544412818 + ... + 69544413595.

It is an arithmetic number, because the mean of its divisors is an integer number (13561160575365).

Almost surely, 2^{54105553474657} is an apocalyptic number.

It is an amenable number.

54105553474657 is a deficient number, since it is larger than the sum of its proper divisors (139088826803).

54105553474657 is a wasteful number, since it uses less digits than its factorization.

54105553474657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139088826802.

The product of its (nonzero) digits is 176400000, while the sum is 61.

The spelling of 54105553474657 in words is "fifty-four trillion, one hundred five billion, five hundred fifty-three million, four hundred seventy-four thousand, six hundred fifty-seven".