55536719719 has 4 divisors (see below), whose sum is σ = 59808775096. Its totient is φ = 51264664344.

The previous prime is 55536719717. The next prime is 55536719741. The reversal of 55536719719 is 91791763555.

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 55536719719 - 2¹ = 55536719717 is a prime.

It is a super-2 number, since 2×55536719719² (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 (55536719717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136027669 + ... + 2136027694.

It is an arithmetic number, because the mean of its divisors is an integer number (14952193774).

Almost surely, 2^55536719719 is an apocalyptic number.

55536719719 is a deficient number, since it is larger than the sum of its proper divisors (4272055377).

55536719719 is a wasteful number, since it uses less digits than its factorization.

55536719719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272055376.

The product of its digits is 8930250, while the sum is 58.

The spelling of 55536719719 in words is "fifty-five billion, five hundred thirty-six million, seven hundred nineteen thousand, seven hundred nineteen".