55531411420 has 24 divisors (see below), whose sum is σ = 116782350048. Its totient is φ = 22180872000.

The previous prime is 55531411399. The next prime is 55531411487. The reversal of 55531411420 is 2411413555.

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 7 ways as a sum of consecutive naturals, for example, 1966416 + ... + 1994455.

It is an arithmetic number, because the mean of its divisors is an integer number (4865931252).

Almost surely, 2^55531411420 is an apocalyptic number.

It is an amenable number.

55531411420 is an abundant number, since it is smaller than the sum of its proper divisors (61250938628).

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

55531411420 is a wasteful number, since it uses less digits than its factorization.

55531411420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961581 (or 3961579 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 55531411420 its reverse (2411413555), we get a palindrome (57942824975).

The spelling of 55531411420 in words is "fifty-five billion, five hundred thirty-one million, four hundred eleven thousand, four hundred twenty".