55528005025549 has 32 divisors (see below), whose sum is σ = 69000716332800. Its totient is φ = 43596268277760.

The previous prime is 55528005025499. The next prime is 55528005025589. The reversal of 55528005025549 is 94552050082555.

It is a happy number.

It is not a de Polignac number, because 55528005025549 - 2¹⁷ = 55528004894477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55528005025549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55528005025589) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11917719 + ... + 15908740.

It is an arithmetic number, because the mean of its divisors is an integer number (2156272385400).

Almost surely, 2^{55528005025549} is an apocalyptic number.

It is an amenable number.

55528005025549 is a deficient number, since it is larger than the sum of its proper divisors (13472711307251).

55528005025549 is a wasteful number, since it uses less digits than its factorization.

55528005025549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27826933.

The product of its (nonzero) digits is 18000000, while the sum is 55.

The spelling of 55528005025549 in words is "fifty-five trillion, five hundred twenty-eight billion, five million, twenty-five thousand, five hundred forty-nine".