225332551 has 4 divisors (see below), whose sum is σ = 226845000. Its totient is φ = 223820104.

The previous prime is 225332537. The next prime is 225332557. The reversal of 225332551 is 155233522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225332551 - 2¹¹ = 225330503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225332557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756001 + ... + 756298.

It is an arithmetic number, because the mean of its divisors is an integer number (56711250).

Almost surely, 2^225332551 is an apocalyptic number.

225332551 is a deficient number, since it is larger than the sum of its proper divisors (1512449).

225332551 is a wasteful number, since it uses less digits than its factorization.

225332551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512448.

The product of its digits is 9000, while the sum is 28.

The square root of 225332551 is about 15011.0809404253. The cubic root of 225332551 is about 608.5197027695.

The spelling of 225332551 in words is "two hundred twenty-five million, three hundred thirty-two thousand, five hundred fifty-one".