2506222 has 4 divisors (see below), whose sum is σ = 3759336. Its totient is φ = 1253110.

The previous prime is 2506201. The next prime is 2506223. The reversal of 2506222 is 2226052.

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

It is a super-2 number, since 2×2506222² = 12562297426568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2506222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626554 + ... + 626557.

It is an arithmetic number, because the mean of its divisors is an integer number (939834).

2^2506222 is an apocalyptic number.

2506222 is a deficient number, since it is larger than the sum of its proper divisors (1253114).

2506222 is a wasteful number, since it uses less digits than its factorization.

2506222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253113.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2506222 is about 1583.1051765439. The cubic root of 2506222 is about 135.8333815934.

The spelling of 2506222 in words is "two million, five hundred six thousand, two hundred twenty-two".