55369561533 has 64 divisors (see below), whose sum is σ = 87928823808. Its totient is φ = 30550129920.

The previous prime is 55369561523. The next prime is 55369561547. The reversal of 55369561533 is 33516596355.

It is not a de Polignac number, because 55369561533 - 2⁹ = 55369561021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55369561523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30371860 + ... + 30373682.

It is an arithmetic number, because the mean of its divisors is an integer number (1373887872).

Almost surely, 2^55369561533 is an apocalyptic number.

It is an amenable number.

55369561533 is a deficient number, since it is larger than the sum of its proper divisors (32559262275).

55369561533 is a wasteful number, since it uses less digits than its factorization.

55369561533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786.

The product of its digits is 5467500, while the sum is 51.

The spelling of 55369561533 in words is "fifty-five billion, three hundred sixty-nine million, five hundred sixty-one thousand, five hundred thirty-three".