55411355642520 has 128 divisors (see below), whose sum is σ = 175331111155200. Its totient is φ = 13970827643904.

The previous prime is 55411355642509. The next prime is 55411355642527. The reversal of 55411355642520 is 2524655311455.

55411355642520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55411355642520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55411355642527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23011437 + ... + 25305116.

It is an arithmetic number, because the mean of its divisors is an integer number (1369774305900).

Almost surely, 2^{55411355642520} is an apocalyptic number.

It is an amenable number.

55411355642520 is an abundant number, since it is smaller than the sum of its proper divisors (119919755512680).

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

55411355642520 is a wasteful number, since it uses less digits than its factorization.

55411355642520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48317089 (or 48317085 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 55411355642520 in words is "fifty-five trillion, four hundred eleven billion, three hundred fifty-five million, six hundred forty-two thousand, five hundred twenty".