53220261545055 has 64 divisors (see below), whose sum is σ = 103223907440640. Its totient is φ = 25801549488000.

The previous prime is 53220261545041. The next prime is 53220261545141. The reversal of 53220261545055 is 55054516202235.

53220261545055 is a `hidden beast` number, since 5 + 3 + 2 + 20 + 2 + 615 + 4 + 5 + 0 + 5 + 5 = 666.

53220261545055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53220261545055 - 2⁸ = 53220261544799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 53220261545055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15844554 + ... + 18907416.

It is an arithmetic number, because the mean of its divisors is an integer number (1612873553760).

Almost surely, 2^{53220261545055} is an apocalyptic number.

53220261545055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53220261545055 is a deficient number, since it is larger than the sum of its proper divisors (50003645895585).

53220261545055 is a wasteful number, since it uses less digits than its factorization.

53220261545055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074589 (or 3074583 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 53220261545055 in words is "fifty-three trillion, two hundred twenty billion, two hundred sixty-one million, five hundred forty-five thousand, fifty-five".