55553595256398 has 128 divisors (see below), whose sum is σ = 122013554411520. Its totient is φ = 16794491955200.

The previous prime is 55553595256337. The next prime is 55553595256451. The reversal of 55553595256398 is 89365259535555.

55553595256398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 86350240 + ... + 86991212.

It is an arithmetic number, because the mean of its divisors is an integer number (953230893840).

Almost surely, 2^{55553595256398} is an apocalyptic number.

55553595256398 is an abundant number, since it is smaller than the sum of its proper divisors (66459959155122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55553595256398 is a wasteful number, since it uses less digits than its factorization.

55553595256398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641322.

The product of its digits is 5467500000, while the sum is 75.

The spelling of 55553595256398 in words is "fifty-five trillion, five hundred fifty-three billion, five hundred ninety-five million, two hundred fifty-six thousand, three hundred ninety-eight".