55515431141 has 4 divisors (see below), whose sum is σ = 55516857984. Its totient is φ = 55514004300.

The previous prime is 55515431117. The next prime is 55515431161. The reversal of 55515431141 is 14113451555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55515431141 - 2¹⁸ = 55515168997 is a prime.

It is a super-2 number, since 2×55515431141² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55515431161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653375 + ... + 733436.

It is an arithmetic number, because the mean of its divisors is an integer number (13879214496).

Almost surely, 2^55515431141 is an apocalyptic number.

It is an amenable number.

55515431141 is a deficient number, since it is larger than the sum of its proper divisors (1426843).

55515431141 is a wasteful number, since it uses less digits than its factorization.

55515431141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426842.

The product of its digits is 30000, while the sum is 35.

Adding to 55515431141 its reverse (14113451555), we get a palindrome (69628882696).

The spelling of 55515431141 in words is "fifty-five billion, five hundred fifteen million, four hundred thirty-one thousand, one hundred forty-one".