255403145 has 16 divisors (see below), whose sum is σ = 324792720. Its totient is φ = 192460800.

The previous prime is 255403091. The next prime is 255403151. The reversal of 255403145 is 541304552.

It can be written as a sum of positive squares in 8 ways, for example, as 73342096 + 182061049 = 8564^2 + 13493^2 .

It is not a de Polignac number, because 255403145 - 2⁶ = 255403081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15536 + ... + 27425.

It is an arithmetic number, because the mean of its divisors is an integer number (20299545).

Almost surely, 2^255403145 is an apocalyptic number.

It is an amenable number.

255403145 is a deficient number, since it is larger than the sum of its proper divisors (69389575).

255403145 is a wasteful number, since it uses less digits than its factorization.

255403145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43036.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 255403145 is about 15981.3373971017. The cubic root of 255403145 is about 634.4665741601.

Adding to 255403145 its reverse (541304552), we get a palindrome (796707697).

The spelling of 255403145 in words is "two hundred fifty-five million, four hundred three thousand, one hundred forty-five".