2509226 has 4 divisors (see below), whose sum is σ = 3763842. Its totient is φ = 1254612.

The previous prime is 2509219. The next prime is 2509237. The reversal of 2509226 is 6229052.

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

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 421201 = 1445^2 + 649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2509195 and 2509204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627305 + ... + 627308.

2^2509226 is an apocalyptic number.

2509226 is a deficient number, since it is larger than the sum of its proper divisors (1254616).

2509226 is a wasteful number, since it uses less digits than its factorization.

2509226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254615.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2509226 is about 1584.0536607072. The cubic root of 2509226 is about 135.8876306527.

The spelling of 2509226 in words is "two million, five hundred nine thousand, two hundred twenty-six".