55215301423 has 8 divisors (see below), whose sum is σ = 55500713840. Its totient is φ = 54930113280.

The previous prime is 55215301397. The next prime is 55215301439. The reversal of 55215301423 is 32410351255.

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

It is a cyclic number.

It is not a de Polignac number, because 55215301423 - 2²⁹ = 54678430511 is a prime.

It is a super-2 number, since 2×55215301423² (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 (55215301723) 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, 449311 + ... + 558847.

It is an arithmetic number, because the mean of its divisors is an integer number (6937589230).

Almost surely, 2^55215301423 is an apocalyptic number.

55215301423 is a deficient number, since it is larger than the sum of its proper divisors (285412417).

55215301423 is a wasteful number, since it uses less digits than its factorization.

55215301423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112137.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 55215301423 its reverse (32410351255), we get a palindrome (87625652678).

The spelling of 55215301423 in words is "fifty-five billion, two hundred fifteen million, three hundred one thousand, four hundred twenty-three".