55436439236 has 24 divisors (see below), whose sum is σ = 97997399640. Its totient is φ = 27437312000.

The previous prime is 55436439199. The next prime is 55436439259. The reversal of 55436439236 is 63293463455.

It can be written as a sum of positive squares in 4 ways, for example, as 34616835136 + 20819604100 = 186056^2 + 144290^2 .

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 7 ways as a sum of consecutive naturals, for example, 2014820 + ... + 2042148.

It is an arithmetic number, because the mean of its divisors is an integer number (4083224985).

Almost surely, 2^55436439236 is an apocalyptic number.

It is an amenable number.

55436439236 is a deficient number, since it is larger than the sum of its proper divisors (42560960404).

55436439236 is a wasteful number, since it uses less digits than its factorization.

55436439236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32455 (or 32453 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 50.

The spelling of 55436439236 in words is "fifty-five billion, four hundred thirty-six million, four hundred thirty-nine thousand, two hundred thirty-six".