2506626 has 20 divisors (see below), whose sum is σ = 5617062. Its totient is φ = 835488.

The previous prime is 2506619. The next prime is 2506631. The reversal of 2506626 is 6266052.

2506626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 301401 = 1485^2 + 549^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2506626.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 7575 + ... + 7898.

2^2506626 is an apocalyptic number.

2506626 is an abundant number, since it is smaller than the sum of its proper divisors (3110436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2506626 is a wasteful number, since it uses less digits than its factorization.

2506626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487 (or 15478 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2506626 is about 1583.2327687362. The cubic root of 2506626 is about 135.8406799277.

The spelling of 2506626 in words is "two million, five hundred six thousand, six hundred twenty-six".