2685506 has 4 divisors (see below), whose sum is σ = 4028262. Its totient is φ = 1342752.

The previous prime is 2685481. The next prime is 2685509. The reversal of 2685506 is 6055862.

It is a happy number.

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., 2430481 + 255025 = 1559^2 + 505^2 .

It is not an unprimeable number, because it can be changed into a prime (2685509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671375 + ... + 671378.

2^2685506 is an apocalyptic number.

2685506 is a deficient number, since it is larger than the sum of its proper divisors (1342756).

2685506 is a wasteful number, since it uses less digits than its factorization.

2685506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342755.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2685506 is about 1638.7513539277. The cubic root of 2685506 is about 138.9980504531.

The spelling of 2685506 in words is "two million, six hundred eighty-five thousand, five hundred six".