2503506 has 8 divisors (see below), whose sum is σ = 5007024. Its totient is φ = 834500.

The previous prime is 2503499. The next prime is 2503507. The reversal of 2503506 is 6053052.

It is a sphenic number, since it is the product of 3 distinct primes.

2503506 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2503507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208620 + ... + 208631.

It is an arithmetic number, because the mean of its divisors is an integer number (625878).

2^2503506 is an apocalyptic number.

2503506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2503506 is a wasteful number, since it uses less digits than its factorization.

2503506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417256.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2503506 is about 1582.2471361959. The cubic root of 2503506 is about 135.7842961822.

Adding to 2503506 its reverse (6053052), we get a palindrome (8556558).

The spelling of 2503506 in words is "two million, five hundred three thousand, five hundred six".