6503907453 has 4 divisors (see below), whose sum is σ = 8671876608. Its totient is φ = 4335938300.

The previous prime is 6503907433. The next prime is 6503907457. The reversal of 6503907453 is 3547093056.

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 a cyclic number.

It is not a de Polignac number, because 6503907453 - 2⁸ = 6503907197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6503907457) 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, 1083984573 + ... + 1083984578.

It is an arithmetic number, because the mean of its divisors is an integer number (2167969152).

Almost surely, 2^6503907453 is an apocalyptic number.

It is an amenable number.

6503907453 is a deficient number, since it is larger than the sum of its proper divisors (2167969155).

6503907453 is a wasteful number, since it uses less digits than its factorization.

6503907453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167969154.

The product of its (nonzero) digits is 340200, while the sum is 42.

The square root of 6503907453 is about 80646.8068369728. The cubic root of 6503907453 is about 1866.6294679060.

The spelling of 6503907453 in words is "six billion, five hundred three million, nine hundred seven thousand, four hundred fifty-three".