55420213532 has 12 divisors (see below), whose sum is σ = 97020621936. Its totient is φ = 27700035840.

The previous prime is 55420213529. The next prime is 55420213561. The reversal of 55420213532 is 23531202455.

It is a congruent number.

It is an unprimeable number.

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, 2505344 + ... + 2527367.

It is an arithmetic number, because the mean of its divisors is an integer number (8085051828).

Almost surely, 2^55420213532 is an apocalyptic number.

It is an amenable number.

55420213532 is a deficient number, since it is larger than the sum of its proper divisors (41600408404).

55420213532 is a wasteful number, since it uses less digits than its factorization.

55420213532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035468 (or 5035466 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 55420213532 its reverse (23531202455), we get a palindrome (78951415987).

The spelling of 55420213532 in words is "fifty-five billion, four hundred twenty million, two hundred thirteen thousand, five hundred thirty-two".