225787651 has 2 divisors, whose sum is σ = 225787652. Its totient is φ = 225787650.

The previous prime is 225787637. The next prime is 225787669. The reversal of 225787651 is 156787522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225787651 - 2¹³ = 225779459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225787598 and 225787607.

It is not a weakly prime, because it can be changed into another prime (225787691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112893825 + 112893826.

It is an arithmetic number, because the mean of its divisors is an integer number (112893826).

Almost surely, 2^225787651 is an apocalyptic number.

225787651 is a deficient number, since it is larger than the sum of its proper divisors (1).

225787651 is an equidigital number, since it uses as much as digits as its factorization.

225787651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 43.

The square root of 225787651 is about 15026.2320959048. The cubic root of 225787651 is about 608.9290992854.

The spelling of 225787651 in words is "two hundred twenty-five million, seven hundred eighty-seven thousand, six hundred fifty-one".