255632401001 has 2 divisors, whose sum is σ = 255632401002. Its totient is φ = 255632401000.

The previous prime is 255632400953. The next prime is 255632401009. The reversal of 255632401001 is 100104236552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154795033600 + 100837367401 = 393440^2 + 317549^2 .

It is a cyclic number.

It is not a de Polignac number, because 255632401001 - 2⁶ = 255632400937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (255632401009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127816200500 + 127816200501.

It is an arithmetic number, because the mean of its divisors is an integer number (127816200501).

Almost surely, 2^255632401001 is an apocalyptic number.

It is an amenable number.

255632401001 is a deficient number, since it is larger than the sum of its proper divisors (1).

255632401001 is an equidigital number, since it uses as much as digits as its factorization.

255632401001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 255632401001 its reverse (100104236552), we get a palindrome (355736637553).

The spelling of 255632401001 in words is "two hundred fifty-five billion, six hundred thirty-two million, four hundred one thousand, one".