55613958719 has 8 divisors (see below), whose sum is σ = 61437745920. Its totient is φ = 49918167000.

The previous prime is 55613958709. The next prime is 55613958737. The reversal of 55613958719 is 91785931655.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55613958719 is a prime.

It is a super-2 number, since 2×55613958719² (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 (55613958709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31997957 + ... + 31999694.

It is an arithmetic number, because the mean of its divisors is an integer number (7679718240).

Almost surely, 2^55613958719 is an apocalyptic number.

55613958719 is a deficient number, since it is larger than the sum of its proper divisors (5823787201).

55613958719 is a wasteful number, since it uses less digits than its factorization.

55613958719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63997741.

The product of its digits is 10206000, while the sum is 59.

The spelling of 55613958719 in words is "fifty-five billion, six hundred thirteen million, nine hundred fifty-eight thousand, seven hundred nineteen".