225200671637 has 2 divisors, whose sum is σ = 225200671638. Its totient is φ = 225200671636.

The previous prime is 225200671621. The next prime is 225200671679. The reversal of 225200671637 is 736176002522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175757146756 + 49443524881 = 419234^2 + 222359^2 .

It is a cyclic number.

It is not a de Polignac number, because 225200671637 - 2⁴ = 225200671621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225200671594 and 225200671603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225200671607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112600335818 + 112600335819.

It is an arithmetic number, because the mean of its divisors is an integer number (112600335819).

Almost surely, 2^225200671637 is an apocalyptic number.

It is an amenable number.

225200671637 is a deficient number, since it is larger than the sum of its proper divisors (1).

225200671637 is an equidigital number, since it uses as much as digits as its factorization.

225200671637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 225200671637 in words is "two hundred twenty-five billion, two hundred million, six hundred seventy-one thousand, six hundred thirty-seven".