255753401 has 4 divisors (see below), whose sum is σ = 258390132. Its totient is φ = 253116672.

The previous prime is 255753391. The next prime is 255753403. The reversal of 255753401 is 104357552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39075001 + 216678400 = 6251^2 + 14720^2 .

It is a cyclic number.

It is not a de Polignac number, because 255753401 - 2¹⁰ = 255752377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255753403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318220 + ... + 1318413.

It is an arithmetic number, because the mean of its divisors is an integer number (64597533).

Almost surely, 2^255753401 is an apocalyptic number.

It is an amenable number.

255753401 is a deficient number, since it is larger than the sum of its proper divisors (2636731).

255753401 is an equidigital number, since it uses as much as digits as its factorization.

255753401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636730.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 255753401 is about 15992.2919245492. The cubic root of 255753401 is about 634.7564742917.

The spelling of 255753401 in words is "two hundred fifty-five million, seven hundred fifty-three thousand, four hundred one".