355492778125 has 12 divisors (see below), whose sum is σ = 444337537140. Its totient is φ = 284394220000.

The previous prime is 355492778119. The next prime is 355492778129. The reversal of 355492778125 is 521877294553.

It can be written as a sum of positive squares in 6 ways, for example, as 230763022884 + 124729755241 = 480378^2 + 353171^2 .

It is not a de Polignac number, because 355492778125 - 2⁵ = 355492778093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 355492778125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355492778129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56875720 + ... + 56881969.

It is an arithmetic number, because the mean of its divisors is an integer number (37028128095).

Almost surely, 2^355492778125 is an apocalyptic number.

It is an amenable number.

355492778125 is a deficient number, since it is larger than the sum of its proper divisors (88844759015).

355492778125 is an frugal number, since it uses more digits than its factorization.

355492778125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113757714 (or 113757694 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 58.

The spelling of 355492778125 in words is "three hundred fifty-five billion, four hundred ninety-two million, seven hundred seventy-eight thousand, one hundred twenty-five".