55605556055525 has 24 divisors (see below), whose sum is σ = 80722992606144. Its totient is φ = 37199535753600.

The previous prime is 55605556055473. The next prime is 55605556055561. The reversal of 55605556055525 is 52555065550655.

It is a happy number.

It is not a de Polignac number, because 55605556055525 - 2¹⁰ = 55605556054501 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3874944467 + ... + 3874958816.

It is an arithmetic number, because the mean of its divisors is an integer number (3363458025256).

Almost surely, 2^{55605556055525} is an apocalyptic number.

It is an amenable number.

55605556055525 is a deficient number, since it is larger than the sum of its proper divisors (25117436550619).

55605556055525 is a wasteful number, since it uses less digits than its factorization.

55605556055525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749903341 (or 7749903336 counting only the distinct ones).

The product of its (nonzero) digits is 140625000, while the sum is 59.

The spelling of 55605556055525 in words is "fifty-five trillion, six hundred five billion, five hundred fifty-six million, fifty-five thousand, five hundred twenty-five".