2501187312061 has 2 divisors, whose sum is σ = 2501187312062. Its totient is φ = 2501187312060.

The previous prime is 2501187312053. The next prime is 2501187312131. The reversal of 2501187312061 is 1602137811052.

2501187312061 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., 1759917971161 + 741269340900 = 1326619^2 + 860970^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501187312061 - 2³ = 2501187312053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2501187312061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2501187312031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250593656030 + 1250593656031.

It is an arithmetic number, because the mean of its divisors is an integer number (1250593656031).

Almost surely, 2^{2501187312061} is an apocalyptic number.

It is an amenable number.

2501187312061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501187312061 is an equidigital number, since it uses as much as digits as its factorization.

2501187312061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 2501187312061 in words is "two trillion, five hundred one billion, one hundred eighty-seven million, three hundred twelve thousand, sixty-one".