2506334221 has 4 divisors (see below), whose sum is σ = 2587183744. Its totient is φ = 2425484700.

The previous prime is 2506334203. The next prime is 2506334227. The reversal of 2506334221 is 1224336052.

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 2506334221 - 2¹³ = 2506326029 is a prime.

It is a super-2 number, since 2×2506334221² = 12563422454711353682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2506334221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506334227) 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, 40424715 + ... + 40424776.

It is an arithmetic number, because the mean of its divisors is an integer number (646795936).

Almost surely, 2^2506334221 is an apocalyptic number.

It is an amenable number.

2506334221 is a deficient number, since it is larger than the sum of its proper divisors (80849523).

2506334221 is an equidigital number, since it uses as much as digits as its factorization.

2506334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80849522.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2506334221 is about 50063.3021383927. The cubic root of 2506334221 is about 1358.3540896507.

The spelling of 2506334221 in words is "two billion, five hundred six million, three hundred thirty-four thousand, two hundred twenty-one".