2525125250261 has 2 divisors, whose sum is σ = 2525125250262. Its totient is φ = 2525125250260.

The previous prime is 2525125250243. The next prime is 2525125250317. The reversal of 2525125250261 is 1620525215252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2329866432100 + 195258818161 = 1526390^2 + 441881^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525125250261 - 2¹⁰ = 2525125249237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525125250231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262562625130 + 1262562625131.

It is an arithmetic number, because the mean of its divisors is an integer number (1262562625131).

Almost surely, 2^{2525125250261} is an apocalyptic number.

It is an amenable number.

2525125250261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525125250261 is an equidigital number, since it uses as much as digits as its factorization.

2525125250261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 2525125250261 in words is "two trillion, five hundred twenty-five billion, one hundred twenty-five million, two hundred fifty thousand, two hundred sixty-one".