55840558937 has 4 divisors (see below), whose sum is σ = 59125297716. Its totient is φ = 52555820160.

The previous prime is 55840558897. The next prime is 55840558951. The reversal of 55840558937 is 73985504855.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73985504855 = 5 ⋅14797100971.

It can be written as a sum of positive squares in 2 ways, for example, as 36714775321 + 19125783616 = 191611^2 + 138296^2 .

It is a cyclic number.

It is not a de Polignac number, because 55840558937 - 2¹⁴ = 55840542553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55840558957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642369364 + ... + 1642369397.

It is an arithmetic number, because the mean of its divisors is an integer number (14781324429).

Almost surely, 2^55840558937 is an apocalyptic number.

It is an amenable number.

55840558937 is a deficient number, since it is larger than the sum of its proper divisors (3284738779).

55840558937 is a wasteful number, since it uses less digits than its factorization.

55840558937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284738778.

The product of its (nonzero) digits is 30240000, while the sum is 59.

The spelling of 55840558937 in words is "fifty-five billion, eight hundred forty million, five hundred fifty-eight thousand, nine hundred thirty-seven".