253500055 has 4 divisors (see below), whose sum is σ = 304200072. Its totient is φ = 202800040.

The previous prime is 253500053. The next prime is 253500067. The reversal of 253500055 is 550005352.

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

It is not a de Polignac number, because 253500055 - 2¹ = 253500053 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 (253500053) 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, 25350001 + ... + 25350010.

It is an arithmetic number, because the mean of its divisors is an integer number (76050018).

Almost surely, 2^253500055 is an apocalyptic number.

253500055 is a deficient number, since it is larger than the sum of its proper divisors (50700017).

253500055 is an equidigital number, since it uses as much as digits as its factorization.

253500055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50700016.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 253500055 is about 15921.6850552949. The cubic root of 253500055 is about 632.8867730797.

The spelling of 253500055 in words is "two hundred fifty-three million, five hundred thousand, fifty-five".