6500455251 has 4 divisors (see below), whose sum is σ = 8667273672. Its totient is φ = 4333636832.

The previous prime is 6500455231. The next prime is 6500455253. The reversal of 6500455251 is 1525540056.

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

It is a cyclic number.

It is not a de Polignac number, because 6500455251 - 2⁵ = 6500455219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6500455253) 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, 1083409206 + ... + 1083409211.

It is an arithmetic number, because the mean of its divisors is an integer number (2166818418).

Almost surely, 2^6500455251 is an apocalyptic number.

6500455251 is a deficient number, since it is larger than the sum of its proper divisors (2166818421).

6500455251 is a wasteful number, since it uses less digits than its factorization.

6500455251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166818420.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 6500455251 is about 80625.4007803992. The cubic root of 6500455251 is about 1866.2991473770.

The spelling of 6500455251 in words is "six billion, five hundred million, four hundred fifty-five thousand, two hundred fifty-one".