52005205550 has 24 divisors (see below), whose sum is σ = 100065191400. Its totient is φ = 20084768480.

The previous prime is 52005205547. The next prime is 52005205643. The reversal of 52005205550 is 5550250025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17931380 + ... + 17934279.

It is an arithmetic number, because the mean of its divisors is an integer number (4169382975).

Almost surely, 2^52005205550 is an apocalyptic number.

52005205550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52005205550 is a deficient number, since it is larger than the sum of its proper divisors (48059985850).

52005205550 is a wasteful number, since it uses less digits than its factorization.

52005205550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35865700 (or 35865695 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

Adding to 52005205550 its reverse (5550250025), we get a palindrome (57555455575).

The spelling of 52005205550 in words is "fifty-two billion, five million, two hundred five thousand, five hundred fifty".