55440055451 has 16 divisors (see below), whose sum is σ = 60746156928. Its totient is φ = 50178609600.

The previous prime is 55440055379. The next prime is 55440055471. The reversal of 55440055451 is 15455004455.

It is a cyclic number.

It is not a de Polignac number, because 55440055451 - 2¹⁸ = 55439793307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55440055471) 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 15 ways as a sum of consecutive naturals, for example, 4033076 + ... + 4046798.

It is an arithmetic number, because the mean of its divisors is an integer number (3796634808).

Almost surely, 2^55440055451 is an apocalyptic number.

55440055451 is a deficient number, since it is larger than the sum of its proper divisors (5306101477).

55440055451 is a wasteful number, since it uses less digits than its factorization.

55440055451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15322.

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 55440055451 in words is "fifty-five billion, four hundred forty million, fifty-five thousand, four hundred fifty-one".