6247042655 has 32 divisors (see below), whose sum is σ = 8863395840. Its totient is φ = 4136290560.

The previous prime is 6247042643. The next prime is 6247042679. The reversal of 6247042655 is 5562407426.

It is not a de Polignac number, because 6247042655 - 2¹⁸ = 6246780511 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 500531 + ... + 512859.

It is an arithmetic number, because the mean of its divisors is an integer number (276981120).

Almost surely, 2^6247042655 is an apocalyptic number.

6247042655 is a deficient number, since it is larger than the sum of its proper divisors (2616353185).

6247042655 is a wasteful number, since it uses less digits than its factorization.

6247042655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12839.

The product of its (nonzero) digits is 403200, while the sum is 41.

The square root of 6247042655 is about 79038.2353990776. The cubic root of 6247042655 is about 1841.7251714271.

The spelling of 6247042655 in words is "six billion, two hundred forty-seven million, forty-two thousand, six hundred fifty-five".