55430140255 has 32 divisors (see below), whose sum is σ = 77426380800. Its totient is φ = 37310861952.

The previous prime is 55430140253. The next prime is 55430140291. The reversal of 55430140255 is 55204103455.

It is not a de Polignac number, because 55430140255 - 2¹ = 55430140253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55430140255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55430140253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420406 + ... + 536284.

It is an arithmetic number, because the mean of its divisors is an integer number (2419574400).

Almost surely, 2^55430140255 is an apocalyptic number.

55430140255 is a deficient number, since it is larger than the sum of its proper divisors (21996240545).

55430140255 is a wasteful number, since it uses less digits than its factorization.

55430140255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116143.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 55430140255 in words is "fifty-five billion, four hundred thirty million, one hundred forty thousand, two hundred fifty-five".