252128561235 has 8 divisors (see below), whose sum is σ = 403405698000. Its totient is φ = 134468565984.

The previous prime is 252128561233. The next prime is 252128561281. The reversal of 252128561235 is 532165821252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252128561235 - 2¹ = 252128561233 is a prime.

It is a super-2 number, since 2×252128561235² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252128561233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8404285360 + ... + 8404285389.

It is an arithmetic number, because the mean of its divisors is an integer number (50425712250).

Almost surely, 2^252128561235 is an apocalyptic number.

252128561235 is a deficient number, since it is larger than the sum of its proper divisors (151277136765).

252128561235 is a wasteful number, since it uses less digits than its factorization.

252128561235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16808570757.

The product of its digits is 288000, while the sum is 42.

The spelling of 252128561235 in words is "two hundred fifty-two billion, one hundred twenty-eight million, five hundred sixty-one thousand, two hundred thirty-five".