5311565655 has 32 divisors (see below), whose sum is σ = 9277348608. Its totient is φ = 2573568000.

The previous prime is 5311565639. The next prime is 5311565687. The reversal of 5311565655 is 5565651135.

It is a happy number.

It is not a de Polignac number, because 5311565655 - 2⁴ = 5311565639 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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254112 + ... + 274218.

It is an arithmetic number, because the mean of its divisors is an integer number (289917144).

Almost surely, 2^5311565655 is an apocalyptic number.

5311565655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5311565655 is a deficient number, since it is larger than the sum of its proper divisors (3965782953).

5311565655 is a wasteful number, since it uses less digits than its factorization.

5311565655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21727.

The product of its digits is 337500, while the sum is 42.

The square root of 5311565655 is about 72880.4888498973. The cubic root of 5311565655 is about 1744.7807109708.

The spelling of 5311565655 in words is "five billion, three hundred eleven million, five hundred sixty-five thousand, six hundred fifty-five".