55525017362780 has 48 divisors (see below), whose sum is σ = 136861664431296. Its totient is φ = 18522631272960.

The previous prime is 55525017362729. The next prime is 55525017362791. The reversal of 55525017362780 is 8726371052555.

It is a super-2 number, since 2×55525017362780² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5359552481 + ... + 5359562840.

It is an arithmetic number, because the mean of its divisors is an integer number (2851284675652).

Almost surely, 2^{55525017362780} is an apocalyptic number.

It is an amenable number.

55525017362780 is an abundant number, since it is smaller than the sum of its proper divisors (81336647068516).

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

55525017362780 is a wasteful number, since it uses less digits than its factorization.

55525017362780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10719115374 (or 10719115372 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 56.

The spelling of 55525017362780 in words is "fifty-five trillion, five hundred twenty-five billion, seventeen million, three hundred sixty-two thousand, seven hundred eighty".