55419606450 has 144 divisors (see below), whose sum is σ = 169779899016. Its totient is φ = 12839270400.

The previous prime is 55419606449. The next prime is 55419606481. The reversal of 55419606450 is 5460691455.

55419606450 is a `hidden beast` number, since 5 + 5 + 4 + 196 + 0 + 6 + 450 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 2607429969 + 52812176481 = 51063^2 + 229809^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55419606396 and 55419606405.

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 71 ways as a sum of consecutive naturals, for example, 179181 + ... + 378080.

Almost surely, 2^55419606450 is an apocalyptic number.

55419606450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55419606450 is an abundant number, since it is smaller than the sum of its proper divisors (114360292566).

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

55419606450 is a wasteful number, since it uses less digits than its factorization.

55419606450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557309 (or 557301 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 55419606450 in words is "fifty-five billion, four hundred nineteen million, six hundred six thousand, four hundred fifty".