55797760519 has 4 divisors (see below), whose sum is σ = 59079981744. Its totient is φ = 52515539296.

The previous prime is 55797760517. The next prime is 55797760537. The reversal of 55797760519 is 91506779755.

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

It is a cyclic number.

It is not a de Polignac number, because 55797760519 - 2¹ = 55797760517 is a prime.

It is a super-2 number, since 2×55797760519² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55797760517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641110587 + ... + 1641110620.

It is an arithmetic number, because the mean of its divisors is an integer number (14769995436).

Almost surely, 2^55797760519 is an apocalyptic number.

55797760519 is a deficient number, since it is larger than the sum of its proper divisors (3282221225).

55797760519 is a wasteful number, since it uses less digits than its factorization.

55797760519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282221224.

The product of its (nonzero) digits is 20837250, while the sum is 61.

The spelling of 55797760519 in words is "fifty-five billion, seven hundred ninety-seven million, seven hundred sixty thousand, five hundred nineteen".