227825046545 has 4 divisors (see below), whose sum is σ = 273390055860. Its totient is φ = 182260037232.

The previous prime is 227825046541. The next prime is 227825046563. The reversal of 227825046545 is 545640528722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545640528722 = 2 ⋅272820264361.

It can be written as a sum of positive squares in 2 ways, for example, as 166881237121 + 60943809424 = 408511^2 + 246868^2 .

It is a cyclic number.

It is not a de Polignac number, because 227825046545 - 2² = 227825046541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227825046493 and 227825046502.

It is not an unprimeable number, because it can be changed into a prime (227825046541) 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 3 ways as a sum of consecutive naturals, for example, 22782504650 + ... + 22782504659.

It is an arithmetic number, because the mean of its divisors is an integer number (68347513965).

Almost surely, 2^227825046545 is an apocalyptic number.

It is an amenable number.

227825046545 is a deficient number, since it is larger than the sum of its proper divisors (45565009315).

227825046545 is an equidigital number, since it uses as much as digits as its factorization.

227825046545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45565009314.

The product of its (nonzero) digits is 5376000, while the sum is 50.

The spelling of 227825046545 in words is "two hundred twenty-seven billion, eight hundred twenty-five million, forty-six thousand, five hundred forty-five".