55594135440 has 60 divisors (see below), whose sum is σ = 186703640604. Its totient is φ = 14825102592.

The previous prime is 55594135439. The next prime is 55594135507. The reversal of 55594135440 is 4453149555.

It is a happy number.

55594135440 is a `hidden beast` number, since 5 + 5 + 5 + 94 + 13 + 544 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16693673616 + 38900461824 = 129204^2 + 197232^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

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 11 ways as a sum of consecutive naturals, for example, 38606319 + ... + 38607758.

Almost surely, 2^55594135440 is an apocalyptic number.

It is an amenable number.

55594135440 is an abundant number, since it is smaller than the sum of its proper divisors (131109505164).

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

55594135440 is a wasteful number, since it uses less digits than its factorization.

55594135440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77214096 (or 77214087 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 55594135440 in words is "fifty-five billion, five hundred ninety-four million, one hundred thirty-five thousand, four hundred forty".