1253310663 has 32 divisors (see below), whose sum is σ = 1863067392. Its totient is φ = 742976000.

The previous prime is 1253310629. The next prime is 1253310689. The reversal of 1253310663 is 3660133521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1253310663 - 2¹² = 1253306567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253310663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253310613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 700456 + ... + 702242.

It is an arithmetic number, because the mean of its divisors is an integer number (58220856).

Almost surely, 2^1253310663 is an apocalyptic number.

1253310663 is a deficient number, since it is larger than the sum of its proper divisors (609756729).

1253310663 is a wasteful number, since it uses less digits than its factorization.

1253310663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1253310663 is about 35402.1279445177. The cubic root of 1253310663 is about 1078.1675209476.

The spelling of 1253310663 in words is "one billion, two hundred fifty-three million, three hundred ten thousand, six hundred sixty-three".