55345516423 has 16 divisors (see below), whose sum is σ = 60839412480. Its totient is φ = 50113318464.

The previous prime is 55345516417. The next prime is 55345516451. The reversal of 55345516423 is 32461554355.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55345516423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55345516423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55345516463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511315 + ... + 610027.

It is an arithmetic number, because the mean of its divisors is an integer number (3802463280).

Almost surely, 2^55345516423 is an apocalyptic number.

55345516423 is a deficient number, since it is larger than the sum of its proper divisors (5493896057).

55345516423 is a wasteful number, since it uses less digits than its factorization.

55345516423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100038.

The product of its digits is 1080000, while the sum is 43.

The spelling of 55345516423 in words is "fifty-five billion, three hundred forty-five million, five hundred sixteen thousand, four hundred twenty-three".