252443403655512 has 128 divisors (see below), whose sum is σ = 669952370520000. Its totient is φ = 78994325651456.

The previous prime is 252443403655511. The next prime is 252443403655523. The reversal of 252443403655512 is 215556304344252.

252443403655512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252443403655511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284872414 + ... + 285757202.

Almost surely, 2^{252443403655512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252443403655512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334976185260000).

252443403655512 is an abundant number, since it is smaller than the sum of its proper divisors (417508966864488).

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

252443403655512 is a wasteful number, since it uses less digits than its factorization.

252443403655512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886613 (or 886609 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 51.

Adding to 252443403655512 its reverse (215556304344252), we get a palindrome (467999707999764).

The spelling of 252443403655512 in words is "two hundred fifty-two trillion, four hundred forty-three billion, four hundred three million, six hundred fifty-five thousand, five hundred twelve".