1005510253 has 4 divisors (see below), whose sum is σ = 1096920288. Its totient is φ = 914100220.

The previous prime is 1005510227. The next prime is 1005510269. The reversal of 1005510253 is 3520155001.

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 not a de Polignac number, because 1005510253 - 2⁵ = 1005510221 is a prime.

It is a super-2 number, since 2×1005510253² = 2022101737776248018, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005540253) 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, 45705001 + ... + 45705022.

It is an arithmetic number, because the mean of its divisors is an integer number (274230072).

Almost surely, 2^1005510253 is an apocalyptic number.

It is an amenable number.

1005510253 is a deficient number, since it is larger than the sum of its proper divisors (91410035).

1005510253 is an equidigital number, since it uses as much as digits as its factorization.

1005510253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91410034.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1005510253 is about 31709.7816611846. The cubic root of 1005510253 is about 1001.8333876356.

Adding to 1005510253 its reverse (3520155001), we get a palindrome (4525665254).

The spelling of 1005510253 in words is "one billion, five million, five hundred ten thousand, two hundred fifty-three".