225407545 has 32 divisors (see below), whose sum is σ = 318245760. Its totient is φ = 151488000.

The previous prime is 225407509. The next prime is 225407549. The reversal of 225407545 is 545704522.

It is not a de Polignac number, because 225407545 - 2⁹ = 225407033 is a prime.

It is a super-2 number, since 2×225407545² = 101617122685854050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225407545.

It is not an unprimeable number, because it can be changed into a prime (225407549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40215 + ... + 45475.

It is an arithmetic number, because the mean of its divisors is an integer number (9945180).

Almost surely, 2^225407545 is an apocalyptic number.

It is an amenable number.

225407545 is a deficient number, since it is larger than the sum of its proper divisors (92838215).

225407545 is a wasteful number, since it uses less digits than its factorization.

225407545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 225407545 is about 15013.5786873084. The cubic root of 225407545 is about 608.5872033956.

The spelling of 225407545 in words is "two hundred twenty-five million, four hundred seven thousand, five hundred forty-five".