2125544561237 has 2 divisors, whose sum is σ = 2125544561238. Its totient is φ = 2125544561236.

The previous prime is 2125544561171. The next prime is 2125544561251. The reversal of 2125544561237 is 7321654455212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1963714558276 + 161830002961 = 1401326^2 + 402281^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125544561237 - 2²² = 2125540366933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2125544561191 and 2125544561200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125544561737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062772280618 + 1062772280619.

It is an arithmetic number, because the mean of its divisors is an integer number (1062772280619).

Almost surely, 2^{2125544561237} is an apocalyptic number.

It is an amenable number.

2125544561237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125544561237 is an equidigital number, since it uses as much as digits as its factorization.

2125544561237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016000, while the sum is 47.

The spelling of 2125544561237 in words is "two trillion, one hundred twenty-five billion, five hundred forty-four million, five hundred sixty-one thousand, two hundred thirty-seven".