6503663253 has 8 divisors (see below), whose sum is σ = 8883052416. Its totient is φ = 4230024800.

The previous prime is 6503663251. The next prime is 6503663281. The reversal of 6503663253 is 3523663056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6503663253 - 2¹ = 6503663251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6503663251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26437533 + ... + 26437778.

It is an arithmetic number, because the mean of its divisors is an integer number (1110381552).

Almost surely, 2^6503663253 is an apocalyptic number.

It is an amenable number.

6503663253 is a deficient number, since it is larger than the sum of its proper divisors (2379389163).

6503663253 is a wasteful number, since it uses less digits than its factorization.

6503663253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52875355.

The product of its (nonzero) digits is 291600, while the sum is 39.

The square root of 6503663253 is about 80645.2928136540. The cubic root of 6503663253 is about 1866.6061057131.

The spelling of 6503663253 in words is "six billion, five hundred three million, six hundred sixty-three thousand, two hundred fifty-three".