2525250281 has 2 divisors, whose sum is σ = 2525250282.
Its totient is φ = 2525250280.
The previous prime is 2525250269. The next prime is 2525250283. The reversal of 2525250281 is 1820525252.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2331344656 + 193905625 = 48284^2 + 13925^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2525250281 is a prime.
It is a super-2 number, since 2×25252502812 = 12753777963381157922, which contains 22 as substring.
Together with 2525250283, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (2525250283) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262625140 + 1262625141.
It is an arithmetic number, because the mean of its divisors is an integer number (1262625141).
Almost surely, 22525250281 is an apocalyptic number.
It is an amenable number.
2525250281 is a deficient number, since it is larger than the sum of its proper divisors (1).
2525250281 is an equidigital number, since it uses as much as digits as its factorization.
2525250281 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 16000, while the sum is 32.
The square root of 2525250281 is about 50251.8684329250.
The cubic root of 2525250281 is about 1361.7628309947.
The spelling of 2525250281 in words is "two billion, five hundred twenty-five million, two hundred fifty thousand, two hundred eighty-one".