255489722 has 4 divisors (see below), whose sum is σ = 383234586. Its totient is φ = 127744860.

The previous prime is 255489709. The next prime is 255489761. The reversal of 255489722 is 227984552.

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., 176119441 + 79370281 = 13271^2 + 8909^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63872429 + ... + 63872432.

Almost surely, 2^255489722 is an apocalyptic number.

255489722 is a deficient number, since it is larger than the sum of its proper divisors (127744864).

255489722 is a wasteful number, since it uses less digits than its factorization.

255489722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127744863.

The product of its digits is 403200, while the sum is 44.

The square root of 255489722 is about 15984.0458582926. The cubic root of 255489722 is about 634.5382569200.

The spelling of 255489722 in words is "two hundred fifty-five million, four hundred eighty-nine thousand, seven hundred twenty-two".