2606522 has 4 divisors (see below), whose sum is σ = 3909786. Its totient is φ = 1303260.

The previous prime is 2606519. The next prime is 2606551. The reversal of 2606522 is 2256062.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2256062 = 2 ⋅1128031.

It can be written as a sum of positive squares in only one way, i.e., 1739761 + 866761 = 1319^2 + 931^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 651629 + ... + 651632.

2^2606522 is an apocalyptic number.

2606522 is a deficient number, since it is larger than the sum of its proper divisors (1303264).

2606522 is a wasteful number, since it uses less digits than its factorization.

2606522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303263.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2606522 is about 1614.4726693258. The cubic root of 2606522 is about 137.6217676150.

The spelling of 2606522 in words is "two million, six hundred six thousand, five hundred twenty-two".