6499985254 has 8 divisors (see below), whose sum is σ = 11142831888. Its totient is φ = 2785707960.

The previous prime is 6499985231. The next prime is 6499985257. The reversal of 6499985254 is 4525899946.

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

It is a junction number, because it is equal to n+sod(n) for n = 6499985192 and 6499985201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6499985257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232142317 + ... + 232142344.

It is an arithmetic number, because the mean of its divisors is an integer number (1392853986).

Almost surely, 2^6499985254 is an apocalyptic number.

6499985254 is a deficient number, since it is larger than the sum of its proper divisors (4642846634).

6499985254 is a wasteful number, since it uses less digits than its factorization.

6499985254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464284670.

The product of its digits is 27993600, while the sum is 61.

The square root of 6499985254 is about 80622.4860321238. The cubic root of 6499985254 is about 1866.2541671355.

The spelling of 6499985254 in words is "six billion, four hundred ninety-nine million, nine hundred eighty-five thousand, two hundred fifty-four".