55136433232540 has 48 divisors (see below), whose sum is σ = 127087479872640. Its totient is φ = 19926608316480.

The previous prime is 55136433232537. The next prime is 55136433232549. The reversal of 55136433232540 is 4523233463155.

It is a happy number.

55136433232540 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55136433232549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768737610 + ... + 768809329.

It is an arithmetic number, because the mean of its divisors is an integer number (2647655830680).

Almost surely, 2^{55136433232540} is an apocalyptic number.

It is an amenable number.

55136433232540 is an abundant number, since it is smaller than the sum of its proper divisors (71951046640100).

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

55136433232540 is a wasteful number, since it uses less digits than its factorization.

55136433232540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537547122 (or 1537547120 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 46.

Adding to 55136433232540 its reverse (4523233463155), we get a palindrome (59659666695695).

The spelling of 55136433232540 in words is "fifty-five trillion, one hundred thirty-six billion, four hundred thirty-three million, two hundred thirty-two thousand, five hundred forty".