2252646561 has 16 divisors (see below), whose sum is σ = 3284164800. Its totient is φ = 1362078720.

The previous prime is 2252646553. The next prime is 2252646587. The reversal of 2252646561 is 1656462522.

It is not a de Polignac number, because 2252646561 - 2³ = 2252646553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2252646511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64536 + ... + 93113.

It is an arithmetic number, because the mean of its divisors is an integer number (205260300).

Almost surely, 2^2252646561 is an apocalyptic number.

It is an amenable number.

2252646561 is a deficient number, since it is larger than the sum of its proper divisors (1031518239).

2252646561 is a wasteful number, since it uses less digits than its factorization.

2252646561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158096.

The product of its digits is 172800, while the sum is 39.

The square root of 2252646561 is about 47462.0539062523. The cubic root of 2252646561 is about 1310.8842700134.

The spelling of 2252646561 in words is "two billion, two hundred fifty-two million, six hundred forty-six thousand, five hundred sixty-one".