253199005 has 4 divisors (see below), whose sum is σ = 303838812. Its totient is φ = 202559200.

The previous prime is 253198991. The next prime is 253199017. The reversal of 253199005 is 500991352.

It is a happy number.

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 179479609 + 73719396 = 13397^2 + 8586^2 .

It is not a de Polignac number, because 253199005 - 2⁷ = 253198877 is a prime.

It is a super-2 number, since 2×253199005² = 128219472265980050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25319896 + ... + 25319905.

It is an arithmetic number, because the mean of its divisors is an integer number (75959703).

Almost surely, 2^253199005 is an apocalyptic number.

It is an amenable number.

253199005 is a deficient number, since it is larger than the sum of its proper divisors (50639807).

253199005 is an equidigital number, since it uses as much as digits as its factorization.

253199005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50639806.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 253199005 is about 15912.2281595005. The cubic root of 253199005 is about 632.6361406083.

The spelling of 253199005 in words is "two hundred fifty-three million, one hundred ninety-nine thousand, five".