253072555 has 4 divisors (see below), whose sum is σ = 303687072. Its totient is φ = 202458040.

The previous prime is 253072553. The next prime is 253072619. The reversal of 253072555 is 555270352.

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

It is not a de Polignac number, because 253072555 - 2¹ = 253072553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253072555.

It is not an unprimeable number, because it can be changed into a prime (253072553) 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, 25307251 + ... + 25307260.

It is an arithmetic number, because the mean of its divisors is an integer number (75921768).

Almost surely, 2^253072555 is an apocalyptic number.

253072555 is a deficient number, since it is larger than the sum of its proper divisors (50614517).

253072555 is an equidigital number, since it uses as much as digits as its factorization.

253072555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50614516.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 253072555 is about 15908.2543039769. The cubic root of 253072555 is about 632.5308082292.

The spelling of 253072555 in words is "two hundred fifty-three million, seventy-two thousand, five hundred fifty-five".