255403956562 has 4 divisors (see below), whose sum is σ = 383105934846. Its totient is φ = 127701978280.

The previous prime is 255403956559. The next prime is 255403956673. The reversal of 255403956562 is 265659304552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 204322984441 + 51080972121 = 452021^2 + 226011^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63850989139 + ... + 63850989142.

Almost surely, 2^255403956562 is an apocalyptic number.

255403956562 is a deficient number, since it is larger than the sum of its proper divisors (127701978284).

255403956562 is a wasteful number, since it uses less digits than its factorization.

255403956562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127701978283.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 255403956562 in words is "two hundred fifty-five billion, four hundred three million, nine hundred fifty-six thousand, five hundred sixty-two".