2501501501 has 2 divisors, whose sum is σ = 2501501502. Its totient is φ = 2501501500.

The previous prime is 2501501491. The next prime is 2501501521. The reversal of 2501501501 is 1051051052.

It is a happy number.

2501501501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (2501501521) can be obtained adding 2501501501 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2445401401 + 56100100 = 49451^2 + 7490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501501501 - 2²⁶ = 2434392637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2501501521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250750750 + 1250750751.

It is an arithmetic number, because the mean of its divisors is an integer number (1250750751).

Almost surely, 2^2501501501 is an apocalyptic number.

It is an amenable number.

2501501501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501501501 is an equidigital number, since it uses as much as digits as its factorization.

2501501501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 2501501501 is about 50015.0127561715. The cubic root of 2501501501 is about 1357.4804673029.

Adding to 2501501501 its reverse (1051051052), we get a palindrome (3552552553).

The spelling of 2501501501 in words is "two billion, five hundred one million, five hundred one thousand, five hundred one".