55598810436 has 81 divisors (see below), whose sum is σ = 152234282109. Its totient is φ = 17101667232.

The previous prime is 55598810431. The next prime is 55598810441. The reversal of 55598810436 is 63401889555.

The square root of 55598810436 is 235794.

It is a perfect power (a square), and thus also a powerful number.

55598810436 is a `hidden beast` number, since 5 + 5 + 598 + 8 + 1 + 0 + 43 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (55598810431) and next prime (55598810441).

It can be written as a sum of positive squares in only one way, i.e., 8224676100 + 47374134336 = 90690^2 + 217656^2 .

It is not an unprimeable number, because it can be changed into a prime (55598810431) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 18390421 + ... + 18393443.

Almost surely, 2^55598810436 is an apocalyptic number.

55598810436 is the 235794-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55598810436

55598810436 is an abundant number, since it is smaller than the sum of its proper divisors (96635471673).

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

55598810436 is a wasteful number, since it uses less digits than its factorization.

55598810436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6082 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 55598810436 in words is "fifty-five billion, five hundred ninety-eight million, eight hundred ten thousand, four hundred thirty-six".