2503001 has 2 divisors, whose sum is σ = 2503002. Its totient is φ = 2503000.

The previous prime is 2502991. The next prime is 2503027. The reversal of 2503001 is 1003052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2253001 + 250000 = 1501^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 2503001 - 2⁶ = 2502937 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2503201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251500 + 1251501.

It is an arithmetic number, because the mean of its divisors is an integer number (1251501).

2^2503001 is an apocalyptic number.

It is an amenable number.

2503001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503001 is an equidigital number, since it uses as much as digits as its factorization.

2503001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 2503001 is about 1582.0875449861. The cubic root of 2503001 is about 135.7751655629.

Adding to 2503001 its reverse (1003052), we get a palindrome (3506053).

The spelling of 2503001 in words is "two million, five hundred three thousand, one".