2501501 has 2 divisors, whose sum is σ = 2501502. Its totient is φ = 2501500.

The previous prime is 2501489. The next prime is 2501507. The reversal of 2501501 is 1051052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2477476 + 24025 = 1574^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501501 - 2¹⁸ = 2239357 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2501507) 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 as a sum of consecutive naturals, namely, 1250750 + 1250751.

It is an arithmetic number, because the mean of its divisors is an integer number (1250751).

2^2501501 is an apocalyptic number.

It is an amenable number.

2501501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501501 is an equidigital number, since it uses as much as digits as its factorization.

2501501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 2501501 is about 1581.6134167362. The cubic root of 2501501 is about 135.7480376678.

Adding to 2501501 its reverse (1051052), we get a palindrome (3552553).

The spelling of 2501501 in words is "two million, five hundred one thousand, five hundred one".