25457000273 has 2 divisors, whose sum is σ = 25457000274. Its totient is φ = 25457000272.

The previous prime is 25457000243. The next prime is 25457000291. The reversal of 25457000273 is 37200075452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25439293009 + 17707264 = 159497^2 + 4208^2 .

It is a cyclic number.

It is not a de Polignac number, because 25457000273 - 2¹² = 25456996177 is a prime.

It is not a weakly prime, because it can be changed into another prime (25457000203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12728500136 + 12728500137.

It is an arithmetic number, because the mean of its divisors is an integer number (12728500137).

Almost surely, 2^25457000273 is an apocalyptic number.

It is an amenable number.

25457000273 is a deficient number, since it is larger than the sum of its proper divisors (1).

25457000273 is an equidigital number, since it uses as much as digits as its factorization.

25457000273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 35.

The spelling of 25457000273 in words is "twenty-five billion, four hundred fifty-seven million, two hundred seventy-three", and thus it is an aban number.