55438788452 has 24 divisors (see below), whose sum is σ = 99598958592. Its totient is φ = 26984865600.

The previous prime is 55438788389. The next prime is 55438788473. The reversal of 55438788452 is 25488783455.

It is a junction number, because it is equal to n+sod(n) for n = 55438788391 and 55438788400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289124 + ... + 440987.

It is an arithmetic number, because the mean of its divisors is an integer number (4149956608).

Almost surely, 2^55438788452 is an apocalyptic number.

It is an amenable number.

55438788452 is a deficient number, since it is larger than the sum of its proper divisors (44160170140).

55438788452 is a wasteful number, since it uses less digits than its factorization.

55438788452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730619 (or 730617 counting only the distinct ones).

The product of its digits is 43008000, while the sum is 59.

The spelling of 55438788452 in words is "fifty-five billion, four hundred thirty-eight million, seven hundred eighty-eight thousand, four hundred fifty-two".