255215203533 has 6 divisors (see below), whose sum is σ = 368644182894. Its totient is φ = 170143469016.

The previous prime is 255215203483. The next prime is 255215203597. The reversal of 255215203533 is 335302512552.

255215203533 is a `hidden beast` number, since 2 + 55 + 21 + 52 + 0 + 3 + 533 = 666.

It can be written as a sum of positive squares in only one way, i.e., 176120390889 + 79094812644 = 419667^2 + 281238^2 .

It is not a de Polignac number, because 255215203533 - 2⁹ = 255215203021 is a prime.

It is a super-2 number, since 2×255215203533² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255215208533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14178622410 + ... + 14178622427.

It is an arithmetic number, because the mean of its divisors is an integer number (61440697149).

Almost surely, 2^255215203533 is an apocalyptic number.

It is an amenable number.

255215203533 is a deficient number, since it is larger than the sum of its proper divisors (113428979361).

255215203533 is a wasteful number, since it uses less digits than its factorization.

255215203533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28357244843 (or 28357244840 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 255215203533 in words is "two hundred fifty-five billion, two hundred fifteen million, two hundred three thousand, five hundred thirty-three".