55321342390 has 8 divisors (see below), whose sum is σ = 99578416320. Its totient is φ = 22128536952.

The previous prime is 55321342369. The next prime is 55321342399. The reversal of 55321342390 is 9324312355.

55321342390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×55321342390² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55321342399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766067110 + ... + 2766067129.

It is an arithmetic number, because the mean of its divisors is an integer number (12447302040).

Almost surely, 2^55321342390 is an apocalyptic number.

55321342390 is a deficient number, since it is larger than the sum of its proper divisors (44257073930).

55321342390 is a wasteful number, since it uses less digits than its factorization.

55321342390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532134246.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 55321342390 in words is "fifty-five billion, three hundred twenty-one million, three hundred forty-two thousand, three hundred ninety".