5665561049525 has 24 divisors (see below), whose sum is σ = 7566592373760. Its totient is φ = 4183307144640.

The previous prime is 5665561049507. The next prime is 5665561049537. The reversal of 5665561049525 is 5259401655665.

It is not a de Polignac number, because 5665561049525 - 2⁶ = 5665561049461 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1756196 + ... + 3796754.

It is an arithmetic number, because the mean of its divisors is an integer number (315274682240).

Almost surely, 2^{5665561049525} is an apocalyptic number.

It is an amenable number.

5665561049525 is a deficient number, since it is larger than the sum of its proper divisors (1901031324235).

5665561049525 is a wasteful number, since it uses less digits than its factorization.

5665561049525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049125 (or 2049120 counting only the distinct ones).

The product of its (nonzero) digits is 48600000, while the sum is 59.

The spelling of 5665561049525 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-one million, forty-nine thousand, five hundred twenty-five".