255698473 has 2 divisors, whose sum is σ = 255698474. Its totient is φ = 255698472.

The previous prime is 255698459. The next prime is 255698491. The reversal of 255698473 is 374896552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224640144 + 31058329 = 14988^2 + 5573^2 .

It is a cyclic number.

It is not a de Polignac number, because 255698473 - 2⁵ = 255698441 is a prime.

It is not a weakly prime, because it can be changed into another prime (255692473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127849236 + 127849237.

It is an arithmetic number, because the mean of its divisors is an integer number (127849237).

Almost surely, 2^255698473 is an apocalyptic number.

It is an amenable number.

255698473 is a deficient number, since it is larger than the sum of its proper divisors (1).

255698473 is an equidigital number, since it uses as much as digits as its factorization.

255698473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The square root of 255698473 is about 15990.5745050014. The cubic root of 255698473 is about 634.7110289528.

The spelling of 255698473 in words is "two hundred fifty-five million, six hundred ninety-eight thousand, four hundred seventy-three".