255602403601 has 4 divisors (see below), whose sum is σ = 255646094704. Its totient is φ = 255558712500.

The previous prime is 255602403587. The next prime is 255602403613. The reversal of 255602403601 is 106304206552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255602403601 - 2¹³ = 255602395409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255600403601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21836775 + ... + 21848476.

It is an arithmetic number, because the mean of its divisors is an integer number (63911523676).

Almost surely, 2^255602403601 is an apocalyptic number.

It is an amenable number.

255602403601 is a deficient number, since it is larger than the sum of its proper divisors (43691103).

255602403601 is an equidigital number, since it uses as much as digits as its factorization.

255602403601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43691102.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 255602403601 in words is "two hundred fifty-five billion, six hundred two million, four hundred three thousand, six hundred one".