55857348645 has 32 divisors (see below), whose sum is σ = 107514900480. Its totient is φ = 24190850880.

The previous prime is 55857348629. The next prime is 55857348649. The reversal of 55857348645 is 54684375855.

It is not a de Polignac number, because 55857348645 - 2⁴ = 55857348629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55857348649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13997341 + ... + 14001330.

It is an arithmetic number, because the mean of its divisors is an integer number (3359840640).

Almost surely, 2^55857348645 is an apocalyptic number.

It is an amenable number.

55857348645 is a deficient number, since it is larger than the sum of its proper divisors (51657551835).

55857348645 is a wasteful number, since it uses less digits than its factorization.

55857348645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27998705.

The product of its digits is 80640000, while the sum is 60.

The spelling of 55857348645 in words is "fifty-five billion, eight hundred fifty-seven million, three hundred forty-eight thousand, six hundred forty-five".