1255540466 has 8 divisors (see below), whose sum is σ = 1883577900. Its totient is φ = 627681168.

The previous prime is 1255540441. The next prime is 1255540477. The reversal of 1255540466 is 6640455521.

It can be written as a sum of positive squares in 2 ways, for example, as 1103634841 + 151905625 = 33221^2 + 12325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25241 + ... + 56108.

Almost surely, 2^1255540466 is an apocalyptic number.

1255540466 is a deficient number, since it is larger than the sum of its proper divisors (628037434).

1255540466 is an equidigital number, since it uses as much as digits as its factorization.

1255540466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89068.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 1255540466 is about 35433.6064492453. The cubic root of 1255540466 is about 1078.8065423051.

Adding to 1255540466 its reverse (6640455521), we get a palindrome (7895995987).

The spelling of 1255540466 in words is "one billion, two hundred fifty-five million, five hundred forty thousand, four hundred sixty-six".