255403501011 has 24 divisors (see below), whose sum is σ = 373743452160. Its totient is φ = 168042841200.

The previous prime is 255403500977. The next prime is 255403501027. The reversal of 255403501011 is 110105304552.

255403501011 is a `hidden beast` number, since 2 + 554 + 0 + 3 + 5 + 0 + 101 + 1 = 666.

It is not a de Polignac number, because 255403501011 - 2¹⁴ = 255403484627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255403501411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1639726 + ... + 1788716.

It is an arithmetic number, because the mean of its divisors is an integer number (15572643840).

Almost surely, 2^255403501011 is an apocalyptic number.

255403501011 is a deficient number, since it is larger than the sum of its proper divisors (118339951149).

255403501011 is a wasteful number, since it uses less digits than its factorization.

255403501011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151487 (or 151484 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 255403501011 its reverse (110105304552), we get a palindrome (365508805563).

The spelling of 255403501011 in words is "two hundred fifty-five billion, four hundred three million, five hundred one thousand, eleven".