255422345378 has 18 divisors (see below), whose sum is σ = 396832790289. Its totient is φ = 123297332872.

The previous prime is 255422345363. The next prime is 255422345419. The reversal of 255422345378 is 873543224552.

It can be written as a sum of positive squares in 2 ways, for example, as 255270489049 + 151856329 = 505243^2 + 12323^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=357367.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20721125 + ... + 20733447.

Almost surely, 2^255422345378 is an apocalyptic number.

255422345378 is a deficient number, since it is larger than the sum of its proper divisors (141410444911).

255422345378 is an frugal number, since it uses more digits than its factorization.

255422345378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24706 (or 12354 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 50.

Multiplying 255422345378 by its sum of digits (50), we get a square (12771117268900 = 3573670²).

The spelling of 255422345378 in words is "two hundred fifty-five billion, four hundred twenty-two million, three hundred forty-five thousand, three hundred seventy-eight".