55343578137 has 4 divisors (see below), whose sum is σ = 73791437520. Its totient is φ = 36895718756.

The previous prime is 55343578117. The next prime is 55343578159. The reversal of 55343578137 is 73187534355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55343578137 - 2⁸ = 55343577881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55343578137.

It is not an unprimeable number, because it can be changed into a prime (55343578117) 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, 9223929687 + ... + 9223929692.

It is an arithmetic number, because the mean of its divisors is an integer number (18447859380).

Almost surely, 2^55343578137 is an apocalyptic number.

It is an amenable number.

55343578137 is a deficient number, since it is larger than the sum of its proper divisors (18447859383).

55343578137 is a wasteful number, since it uses less digits than its factorization.

55343578137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18447859382.

The product of its digits is 5292000, while the sum is 51.

The spelling of 55343578137 in words is "fifty-five billion, three hundred forty-three million, five hundred seventy-eight thousand, one hundred thirty-seven".