2500637501 has 2 divisors, whose sum is σ = 2500637502. Its totient is φ = 2500637500.

The previous prime is 2500637497. The next prime is 2500637521. The reversal of 2500637501 is 1057360052.

2500637501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2378512900 + 122124601 = 48770^2 + 11051^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500637501 - 2² = 2500637497 is a prime.

It is a super-2 number, since 2×2500637501² = 12506375822815050002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500637521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250318750 + 1250318751.

It is an arithmetic number, because the mean of its divisors is an integer number (1250318751).

Almost surely, 2^2500637501 is an apocalyptic number.

It is an amenable number.

2500637501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500637501 is an equidigital number, since it uses as much as digits as its factorization.

2500637501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 2500637501 is about 50006.3746036443. The cubic root of 2500637501 is about 1357.3241614226.

Adding to 2500637501 its reverse (1057360052), we get a palindrome (3557997553).

The spelling of 2500637501 in words is "two billion, five hundred million, six hundred thirty-seven thousand, five hundred one".