55533266233555 has 32 divisors (see below), whose sum is σ = 73453596507648. Its totient is φ = 39968174822400.

The previous prime is 55533266233513. The next prime is 55533266233559.

55533266233555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55533266233555 - 2⁷ = 55533266233427 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55533266233555.

It is not an unprimeable number, because it can be changed into a prime (55533266233559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65428240 + ... + 66271570.

It is an arithmetic number, because the mean of its divisors is an integer number (2295424890864).

Almost surely, 2^{55533266233555} is an apocalyptic number.

55533266233555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55533266233555 is a deficient number, since it is larger than the sum of its proper divisors (17920330274093).

55533266233555 is a wasteful number, since it uses less digits than its factorization.

55533266233555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855787.

The product of its digits is 182250000, while the sum is 58.

The spelling of 55533266233555 in words is "fifty-five trillion, five hundred thirty-three billion, two hundred sixty-six million, two hundred thirty-three thousand, five hundred fifty-five".