5533401221955 has 24 divisors (see below), whose sum is σ = 9654746868000. Its totient is φ = 2931603292800.

The previous prime is 5533401221939. The next prime is 5533401221977. The reversal of 5533401221955 is 5591221043355.

5533401221955 is a `hidden beast` number, since 5 + 5 + 33 + 401 + 22 + 195 + 5 = 666.

It is not a de Polignac number, because 5533401221955 - 2⁴ = 5533401221939 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 5533401221955.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 407160330 + ... + 407173919.

It is an arithmetic number, because the mean of its divisors is an integer number (402281119500).

Almost surely, 2^{5533401221955} is an apocalyptic number.

5533401221955 is a deficient number, since it is larger than the sum of its proper divisors (4121345646045).

5533401221955 is a wasteful number, since it uses less digits than its factorization.

5533401221955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814334411 (or 814334408 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 5533401221955 in words is "five trillion, five hundred thirty-three billion, four hundred one million, two hundred twenty-one thousand, nine hundred fifty-five".