1253420255 has 16 divisors (see below), whose sum is σ = 1530256224. Its totient is φ = 985374720.

The previous prime is 1253420243. The next prime is 1253420263. The reversal of 1253420255 is 5520243521.

It is not a de Polignac number, because 1253420255 - 2⁴ = 1253420239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140735 + ... + 149375.

It is an arithmetic number, because the mean of its divisors is an integer number (95641014).

Almost surely, 2^1253420255 is an apocalyptic number.

1253420255 is a deficient number, since it is larger than the sum of its proper divisors (276835969).

1253420255 is an equidigital number, since it uses as much as digits as its factorization.

1253420255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9146.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1253420255 is about 35403.6757272462. The cubic root of 1253420255 is about 1078.1989457424.

Adding to 1253420255 its reverse (5520243521), we get a palindrome (6773663776).

The spelling of 1253420255 in words is "one billion, two hundred fifty-three million, four hundred twenty thousand, two hundred fifty-five".