55345350405 has 32 divisors (see below), whose sum is σ = 90221624064. Its totient is φ = 28965275136.

The previous prime is 55345350383. The next prime is 55345350413. The reversal of 55345350405 is 50405354355.

It is not a de Polignac number, because 55345350405 - 2⁹ = 55345349893 is a prime.

It is a super-2 number, since 2×55345350405² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87432 + ... + 343998.

It is an arithmetic number, because the mean of its divisors is an integer number (2819425752).

Almost surely, 2^55345350405 is an apocalyptic number.

It is an amenable number.

55345350405 is a deficient number, since it is larger than the sum of its proper divisors (34876273659).

55345350405 is a wasteful number, since it uses less digits than its factorization.

55345350405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256845.

The product of its (nonzero) digits is 450000, while the sum is 39.

The spelling of 55345350405 in words is "fifty-five billion, three hundred forty-five million, three hundred fifty thousand, four hundred five".