1253302563 has 4 divisors (see below), whose sum is σ = 1671070088. Its totient is φ = 835535040.

The previous prime is 1253302559. The next prime is 1253302619. The reversal of 1253302563 is 3652033521.

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

It is not a de Polignac number, because 1253302563 - 2² = 1253302559 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 1253302563.

It is not an unprimeable number, because it can be changed into a prime (1253302513) 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, 208883758 + ... + 208883763.

It is an arithmetic number, because the mean of its divisors is an integer number (417767522).

Almost surely, 2^1253302563 is an apocalyptic number.

1253302563 is a deficient number, since it is larger than the sum of its proper divisors (417767525).

1253302563 is an equidigital number, since it uses as much as digits as its factorization.

1253302563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417767524.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 1253302563 is about 35402.0135444299. The cubic root of 1253302563 is about 1078.1651982525.

The spelling of 1253302563 in words is "one billion, two hundred fifty-three million, three hundred two thousand, five hundred sixty-three".