55263155136255 has 64 divisors (see below), whose sum is σ = 107408513341440. Its totient is φ = 26736385737600.

The previous prime is 55263155136251. The next prime is 55263155136257.

55263155136255 is a `hidden beast` number, since 5 + 5 + 2 + 6 + 3 + 1 + 5 + 5 + 1 + 3 + 625 + 5 = 666.

55263155136255 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55263155136255 - 2² = 55263155136251 is a prime.

It is a super-2 number, since 2×55263155136255² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55263155136251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39500616 + ... + 40875725.

It is an arithmetic number, because the mean of its divisors is an integer number (1678258020960).

Almost surely, 2^{55263155136255} is an apocalyptic number.

55263155136255 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55263155136255 is a deficient number, since it is larger than the sum of its proper divisors (52145358205185).

55263155136255 is a wasteful number, since it uses less digits than its factorization.

55263155136255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80376829 (or 80376823 counting only the distinct ones).

The product of its digits is 20250000, while the sum is 54.

The spelling of 55263155136255 in words is "fifty-five trillion, two hundred sixty-three billion, one hundred fifty-five million, one hundred thirty-six thousand, two hundred fifty-five".