52002446144 has 28 divisors (see below), whose sum is σ = 112573478688. Its totient is φ = 23637475200.

The previous prime is 52002446143. The next prime is 52002446147. The reversal of 52002446144 is 44164420025.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 52002446144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52002446143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36932852 + ... + 36934259.

Almost surely, 2^52002446144 is an apocalyptic number.

It is an amenable number.

52002446144 is an abundant number, since it is smaller than the sum of its proper divisors (60571032544).

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

52002446144 is a wasteful number, since it uses less digits than its factorization.

52002446144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73867134 (or 73867124 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 52002446144 its reverse (44164420025), we get a palindrome (96166866169).

The spelling of 52002446144 in words is "fifty-two billion, two million, four hundred forty-six thousand, one hundred forty-four".