255501135 has 96 divisors (see below), whose sum is σ = 493129728. Its totient is φ = 126593280.

The previous prime is 255501133. The next prime is 255501137. The reversal of 255501135 is 531105552.

255501135 is a `hidden beast` number, since 25 + 5 + 501 + 135 = 666.

It is an interprime number because it is at equal distance from previous prime (255501133) and next prime (255501137).

It is not a de Polignac number, because 255501135 - 2¹ = 255501133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 255501099 and 255501108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255501133) 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 95 ways as a sum of consecutive naturals, for example, 1145634 + ... + 1145856.

It is an arithmetic number, because the mean of its divisors is an integer number (5136768).

Almost surely, 2^255501135 is an apocalyptic number.

255501135 is a deficient number, since it is larger than the sum of its proper divisors (237628593).

255501135 is a wasteful number, since it uses less digits than its factorization.

255501135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 255501135 is about 15984.4028665446. The cubic root of 255501135 is about 634.5477052809.

Adding to 255501135 its reverse (531105552), we get a palindrome (786606687).

The spelling of 255501135 in words is "two hundred fifty-five million, five hundred one thousand, one hundred thirty-five".