255774970564 has 27 divisors (see below), whose sum is σ = 472439823597. Its totient is φ = 121147461648.

The previous prime is 255774970553. The next prime is 255774970643. The reversal of 255774970564 is 465079477552.

The square root of 255774970564 is 505742.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1879916164 + 253895054400 = 43358^2 + 503880^2 .

It is a super-3 number, since 3×255774970564³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 19211542 + ... + 19224850.

Almost surely, 2^255774970564 is an apocalyptic number.

255774970564 is the 505742-nd square number.

It is an amenable number.

255774970564 is a deficient number, since it is larger than the sum of its proper divisors (216664853033).

255774970564 is an frugal number, since it uses more digits than its factorization.

255774970564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26660 (or 13330 counting only the distinct ones).

The product of its (nonzero) digits is 74088000, while the sum is 61.

The spelling of 255774970564 in words is "two hundred fifty-five billion, seven hundred seventy-four million, nine hundred seventy thousand, five hundred sixty-four".