225450551 has 4 divisors (see below), whose sum is σ = 225529752. Its totient is φ = 225371352.

The previous prime is 225450539. The next prime is 225450581. The reversal of 225450551 is 155054522.

225450551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 225450551 - 2⁶ = 225450487 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 (225450521) 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, 35165 + ... + 41078.

It is an arithmetic number, because the mean of its divisors is an integer number (56382438).

Almost surely, 2^225450551 is an apocalyptic number.

225450551 is a deficient number, since it is larger than the sum of its proper divisors (79201).

225450551 is an equidigital number, since it uses as much as digits as its factorization.

225450551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79200.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 225450551 is about 15015.0108558069. The cubic root of 225450551 is about 608.6259054969.

The spelling of 225450551 in words is "two hundred twenty-five million, four hundred fifty thousand, five hundred fifty-one".