55435417155 has 12 divisors (see below), whose sum is σ = 96088056480. Its totient is φ = 29565555792.

The previous prime is 55435417117. The next prime is 55435417157. The reversal of 55435417155 is 55171453455.

55435417155 is a `hidden beast` number, since 5 + 54 + 3 + 541 + 7 + 1 + 55 = 666.

It is not a de Polignac number, because 55435417155 - 2⁷ = 55435417027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1231898159 = 55435417155 / (5 + 5 + 4 + 3 + 5 + 4 + 1 + 7 + 1 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 55435417155.

It is not an unprimeable number, because it can be changed into a prime (55435417157) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 615949035 + ... + 615949124.

It is an arithmetic number, because the mean of its divisors is an integer number (8007338040).

Almost surely, 2^55435417155 is an apocalyptic number.

55435417155 is a deficient number, since it is larger than the sum of its proper divisors (40652639325).

55435417155 is a wasteful number, since it uses less digits than its factorization.

55435417155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231898170 (or 1231898167 counting only the distinct ones).

The product of its digits is 1050000, while the sum is 45.

The spelling of 55435417155 in words is "fifty-five billion, four hundred thirty-five million, four hundred seventeen thousand, one hundred fifty-five".