2495221 has 4 divisors (see below), whose sum is σ = 2575744. Its totient is φ = 2414700.

The previous prime is 2495203. The next prime is 2495239. The reversal of 2495221 is 1225942.

2495221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1225942 = 2 ⋅612971.

It is an interprime number because it is at equal distance from previous prime (2495203) and next prime (2495239).

It is a cyclic number.

It is not a de Polignac number, because 2495221 - 2¹⁷ = 2364149 is a prime.

It is a super-2 number, since 2×2495221² = 12452255677682, which contains 22 as substring.

It is a Duffinian number.

2495221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2495291) 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 3 ways as a sum of consecutive naturals, for example, 40215 + ... + 40276.

It is an arithmetic number, because the mean of its divisors is an integer number (643936).

2^2495221 is an apocalyptic number.

It is an amenable number.

2495221 is a deficient number, since it is larger than the sum of its proper divisors (80523).

2495221 is an equidigital number, since it uses as much as digits as its factorization.

2495221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80522.

The product of its digits is 1440, while the sum is 25.

The square root of 2495221 is about 1579.6268546717. The cubic root of 2495221 is about 135.6343443200.

The spelling of 2495221 in words is "two million, four hundred ninety-five thousand, two hundred twenty-one".