252100405424 has 20 divisors (see below), whose sum is σ = 558222326544. Its totient is φ = 108043030848.

The previous prime is 252100405423. The next prime is 252100405451. The reversal of 252100405424 is 424504001252.

252100405424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252100405424² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252100405423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125448127 + ... + 1125448350.

Almost surely, 2^252100405424 is an apocalyptic number.

It is an amenable number.

252100405424 is an abundant number, since it is smaller than the sum of its proper divisors (306121921120).

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

252100405424 is a wasteful number, since it uses less digits than its factorization.

252100405424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250896492 (or 2250896486 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 252100405424 its reverse (424504001252), we get a palindrome (676604406676).

The spelling of 252100405424 in words is "two hundred fifty-two billion, one hundred million, four hundred five thousand, four hundred twenty-four".