225101551 has 2 divisors, whose sum is σ = 225101552. Its totient is φ = 225101550.

The previous prime is 225101501. The next prime is 225101563. The reversal of 225101551 is 155101522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225101551 - 2⁷ = 225101423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225101501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112550775 + 112550776.

It is an arithmetic number, because the mean of its divisors is an integer number (112550776).

Almost surely, 2^225101551 is an apocalyptic number.

225101551 is a deficient number, since it is larger than the sum of its proper divisors (1).

225101551 is an equidigital number, since it uses as much as digits as its factorization.

225101551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 225101551 is about 15003.3846514711. The cubic root of 225101551 is about 608.3116900454.

The spelling of 225101551 in words is "two hundred twenty-five million, one hundred one thousand, five hundred fifty-one".