53210000550 has 96 divisors (see below), whose sum is σ = 151171824384. Its totient is φ = 12133296000.

The previous prime is 53210000521. The next prime is 53210000563. The reversal of 53210000550 is 5500001235.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 381865 + ... + 502235.

It is an arithmetic number, because the mean of its divisors is an integer number (1574706504).

Almost surely, 2^53210000550 is an apocalyptic number.

53210000550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53210000550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75585912192).

53210000550 is an abundant number, since it is smaller than the sum of its proper divisors (97961823834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53210000550 is a wasteful number, since it uses less digits than its factorization.

53210000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120814 (or 120809 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

Adding to 53210000550 its reverse (5500001235), we get a palindrome (58710001785).

The spelling of 53210000550 in words is "fifty-three billion, two hundred ten million, five hundred fifty", and thus it is an aban number.