2252520521 has 4 divisors (see below), whose sum is σ = 2313399492. Its totient is φ = 2191641552.

The previous prime is 2252520499. The next prime is 2252520541. The reversal of 2252520521 is 1250252522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 828288400 + 1424232121 = 28780^2 + 37739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2252520521 - 2²² = 2248326217 is a prime.

It is a super-2 number, since 2×2252520521² = 10147697395052222882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2252520541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30439430 + ... + 30439503.

It is an arithmetic number, because the mean of its divisors is an integer number (578349873).

Almost surely, 2^2252520521 is an apocalyptic number.

It is an amenable number.

2252520521 is a deficient number, since it is larger than the sum of its proper divisors (60878971).

2252520521 is an equidigital number, since it uses as much as digits as its factorization.

2252520521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60878970.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2252520521 is about 47460.7260901053. The cubic root of 2252520521 is about 1310.8598207074.

The spelling of 2252520521 in words is "two billion, two hundred fifty-two million, five hundred twenty thousand, five hundred twenty-one".