2252521656129 has 4 divisors (see below), whose sum is σ = 3003362208176. Its totient is φ = 1501681104084.

The previous prime is 2252521656107. The next prime is 2252521656131. The reversal of 2252521656129 is 9216561252522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2252521656129 - 2⁷ = 2252521656001 is a prime.

It is a super-2 number, since 2×2252521656129² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2252521656829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375420276019 + ... + 375420276024.

It is an arithmetic number, because the mean of its divisors is an integer number (750840552044).

Almost surely, 2^{2252521656129} is an apocalyptic number.

It is an amenable number.

2252521656129 is a deficient number, since it is larger than the sum of its proper divisors (750840552047).

2252521656129 is an equidigital number, since it uses as much as digits as its factorization.

2252521656129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750840552046.

The product of its digits is 1296000, while the sum is 48.

The spelling of 2252521656129 in words is "two trillion, two hundred fifty-two billion, five hundred twenty-one million, six hundred fifty-six thousand, one hundred twenty-nine".