2506662321 has 4 divisors (see below), whose sum is σ = 3342216432. Its totient is φ = 1671108212.

The previous prime is 2506662293. The next prime is 2506662329. The reversal of 2506662321 is 1232666052.

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 a cyclic number.

It is not a de Polignac number, because 2506662321 - 2¹⁷ = 2506531249 is a prime.

It is a super-2 number, since 2×2506662321² = 12566711983042214082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2506662329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417777051 + ... + 417777056.

It is an arithmetic number, because the mean of its divisors is an integer number (835554108).

Almost surely, 2^2506662321 is an apocalyptic number.

It is an amenable number.

2506662321 is a deficient number, since it is larger than the sum of its proper divisors (835554111).

2506662321 is an equidigital number, since it uses as much as digits as its factorization.

2506662321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835554110.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 2506662321 is about 50066.5788825240. The cubic root of 2506662321 is about 1358.4133603479.

The spelling of 2506662321 in words is "two billion, five hundred six million, six hundred sixty-two thousand, three hundred twenty-one".