54505543857 has 8 divisors (see below), whose sum is σ = 72704488320. Its totient is φ = 36321814320.

The previous prime is 54505543783. The next prime is 54505543889. The reversal of 54505543857 is 75834550545.

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

It is not a de Polignac number, because 54505543857 - 2¹⁵ = 54505511089 is a prime.

It is a super-2 number, since 2×54505543857² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54505543357) 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, 3795369 + ... + 3809702.

It is an arithmetic number, because the mean of its divisors is an integer number (9088061040).

Almost surely, 2^54505543857 is an apocalyptic number.

It is an amenable number.

54505543857 is a deficient number, since it is larger than the sum of its proper divisors (18198944463).

54505543857 is a wasteful number, since it uses less digits than its factorization.

54505543857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607463.

The product of its (nonzero) digits is 8400000, while the sum is 51.

The spelling of 54505543857 in words is "fifty-four billion, five hundred five million, five hundred forty-three thousand, eight hundred fifty-seven".