2501000101 has 8 divisors (see below), whose sum is σ = 2648930904. Its totient is φ = 2353159680.

The previous prime is 2501000087. The next prime is 2501000119. The reversal of 2501000101 is 1010001052.

It is a happy number.

It is a Cunningham number, because it is equal to 50010²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1947103876 + 553896225 = 44126^2 + 23535^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2501000101 - 2⁵ = 2501000069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501000171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39241 + ... + 80881.

It is an arithmetic number, because the mean of its divisors is an integer number (331116363).

Almost surely, 2^2501000101 is an apocalyptic number.

It is an amenable number.

2501000101 is a deficient number, since it is larger than the sum of its proper divisors (147930803).

2501000101 is a wasteful number, since it uses less digits than its factorization.

2501000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45191.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 2501000101 is about 50010.0000099980. Note that the first 5 decimals coincide. The cubic root of 2501000101 is about 1357.3897636213.

Adding to 2501000101 its reverse (1010001052), we get a palindrome (3511001153).

The spelling of 2501000101 in words is "two billion, five hundred one million, one hundred one", and thus it is an aban number.