6531474455 has 32 divisors (see below), whose sum is σ = 8796211200. Its totient is φ = 4614534400.

The previous prime is 6531474449. The next prime is 6531474487. The reversal of 6531474455 is 5544741356.

It is not a de Polignac number, because 6531474455 - 2¹² = 6531470359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532886 + ... + 545004.

It is an arithmetic number, because the mean of its divisors is an integer number (274881600).

Almost surely, 2^6531474455 is an apocalyptic number.

6531474455 is a deficient number, since it is larger than the sum of its proper divisors (2264736745).

6531474455 is a wasteful number, since it uses less digits than its factorization.

6531474455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12415.

The product of its digits is 1008000, while the sum is 44.

The square root of 6531474455 is about 80817.5380409475. The cubic root of 6531474455 is about 1869.2630051631.

The spelling of 6531474455 in words is "six billion, five hundred thirty-one million, four hundred seventy-four thousand, four hundred fifty-five".