55407254784 has 288 divisors, whose sum is σ = 172127692800. Its totient is φ = 15495929856.

The previous prime is 55407254783. The next prime is 55407254809. The reversal of 55407254784 is 48745270455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55407254783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71677822 + ... + 71678594.

It is an arithmetic number, because the mean of its divisors is an integer number (597665600).

Almost surely, 2^55407254784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55407254784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86063846400).

55407254784 is an abundant number, since it is smaller than the sum of its proper divisors (116720438016).

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

55407254784 is a wasteful number, since it uses less digits than its factorization.

55407254784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 6272000, while the sum is 51.

It can be divided in two parts, 554072 and 54784, that added together give a triangular number (608856 = T₁₁₀₃).

The spelling of 55407254784 in words is "fifty-five billion, four hundred seven million, two hundred fifty-four thousand, seven hundred eighty-four".