52443421500 has 96 divisors (see below), whose sum is σ = 152882323776. Its totient is φ = 13969612800.

The previous prime is 52443421451. The next prime is 52443421517. The reversal of 52443421500 is 512434425.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1386844 + ... + 1424156.

It is an arithmetic number, because the mean of its divisors is an integer number (1592524206).

Almost surely, 2^52443421500 is an apocalyptic number.

52443421500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52443421500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76441161888).

52443421500 is an abundant number, since it is smaller than the sum of its proper divisors (100438902276).

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

52443421500 is a wasteful number, since it uses less digits than its factorization.

52443421500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38272 (or 38260 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 52443421500 its reverse (512434425), we get a palindrome (52955855925).

The spelling of 52443421500 in words is "fifty-two billion, four hundred forty-three million, four hundred twenty-one thousand, five hundred".