255024505 has 4 divisors (see below), whose sum is σ = 306029412. Its totient is φ = 204019600.

The previous prime is 255024503. The next prime is 255024533. The reversal of 255024505 is 505420552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124813584 + 130210921 = 11172^2 + 11411^2 .

It is not a de Polignac number, because 255024505 - 2¹ = 255024503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255024503) 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, 25502446 + ... + 25502455.

It is an arithmetic number, because the mean of its divisors is an integer number (76507353).

Almost surely, 2^255024505 is an apocalyptic number.

It is an amenable number.

255024505 is a deficient number, since it is larger than the sum of its proper divisors (51004907).

255024505 is an equidigital number, since it uses as much as digits as its factorization.

255024505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51004906.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 255024505 is about 15969.4866855513. The cubic root of 255024505 is about 634.1528828534.

The spelling of 255024505 in words is "two hundred fifty-five million, twenty-four thousand, five hundred five".