55001001355 has 16 divisors (see below), whose sum is σ = 72495601920. Its totient is φ = 39872577888.

The previous prime is 55001001343. The next prime is 55001001359. The reversal of 55001001355 is 55310010055.

55001001355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55001001355 - 2⁹ = 55001000843 is a prime.

It is a super-2 number, since 2×55001001355² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55001001359) 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, 12583857 + ... + 12588226.

It is an arithmetic number, because the mean of its divisors is an integer number (4530975120).

Almost surely, 2^55001001355 is an apocalyptic number.

55001001355 is a deficient number, since it is larger than the sum of its proper divisors (17494600565).

55001001355 is a wasteful number, since it uses less digits than its factorization.

55001001355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25172130.

The product of its (nonzero) digits is 1875, while the sum is 25.

The spelling of 55001001355 in words is "fifty-five billion, one million, one thousand, three hundred fifty-five".