6498478553 has 8 divisors (see below), whose sum is σ = 7817718720. Its totient is φ = 5276959920.

The previous prime is 6498478537. The next prime is 6498478577. The reversal of 6498478553 is 3558748946.

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 6498478553 - 2⁴ = 6498478537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6498478492 and 6498478501.

It is not an unprimeable number, because it can be changed into a prime (6498478513) 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, 24430238 + ... + 24430503.

It is an arithmetic number, because the mean of its divisors is an integer number (977214840).

Almost surely, 2^6498478553 is an apocalyptic number.

It is an amenable number.

6498478553 is a deficient number, since it is larger than the sum of its proper divisors (1319240167).

6498478553 is a wasteful number, since it uses less digits than its factorization.

6498478553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48860767.

The product of its digits is 29030400, while the sum is 59.

The square root of 6498478553 is about 80613.1413170334. The cubic root of 6498478553 is about 1866.1099563307.

The spelling of 6498478553 in words is "six billion, four hundred ninety-eight million, four hundred seventy-eight thousand, five hundred fifty-three".