2506722 has 16 divisors (see below), whose sum is σ = 5175552. Its totient is φ = 808560.

The previous prime is 2506717. The next prime is 2506723. The reversal of 2506722 is 2276052.

It is a junction number, because it is equal to n+sod(n) for n = 2506692 and 2506701.

It is not an unprimeable number, because it can be changed into a prime (2506723) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6553 + ... + 6924.

It is an arithmetic number, because the mean of its divisors is an integer number (323472).

2^2506722 is an apocalyptic number.

2506722 is an abundant number, since it is smaller than the sum of its proper divisors (2668830).

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

2506722 is a wasteful number, since it uses less digits than its factorization.

2506722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13513.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 2506722 is about 1583.2630861610. The cubic root of 2506722 is about 135.8424140700.

The spelling of 2506722 in words is "two million, five hundred six thousand, seven hundred twenty-two".