55549581835 has 16 divisors (see below), whose sum is σ = 72825972480. Its totient is φ = 40340518240.

The previous prime is 55549581833. The next prime is 55549581839. The reversal of 55549581835 is 53818594555.

55549581835 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 55549581835 - 2¹ = 55549581833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55549581835.

It is not an unprimeable number, because it can be changed into a prime (55549581833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701815 + ... + 776944.

It is an arithmetic number, because the mean of its divisors is an integer number (4551623280).

Almost surely, 2^55549581835 is an apocalyptic number.

55549581835 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55549581835 is a deficient number, since it is larger than the sum of its proper divisors (17276390645).

55549581835 is a wasteful number, since it uses less digits than its factorization.

55549581835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479458.

The product of its digits is 21600000, while the sum is 58.

The spelling of 55549581835 in words is "fifty-five billion, five hundred forty-nine million, five hundred eighty-one thousand, eight hundred thirty-five".