255140533 has 4 divisors (see below), whose sum is σ = 258370240. Its totient is φ = 251910828.

The previous prime is 255140527. The next prime is 255140549. The reversal of 255140533 is 335041552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255140533 - 2⁹ = 255140021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255140563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614735 + ... + 1614892.

It is an arithmetic number, because the mean of its divisors is an integer number (64592560).

Almost surely, 2^255140533 is an apocalyptic number.

It is an amenable number.

255140533 is a deficient number, since it is larger than the sum of its proper divisors (3229707).

255140533 is an equidigital number, since it uses as much as digits as its factorization.

255140533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229706.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 255140533 is about 15973.1190754968. The cubic root of 255140533 is about 634.2490413706.

The spelling of 255140533 in words is "two hundred fifty-five million, one hundred forty thousand, five hundred thirty-three".