445546225 has 12 divisors (see below), whose sum is σ = 576498816. Its totient is φ = 340939280.

The previous prime is 445546201. The next prime is 445546237. The reversal of 445546225 is 522645544.

It is a happy number.

It is not a de Polignac number, because 445546225 - 2⁹ = 445545713 is a prime.

It is a super-2 number, since 2×445546225² = 397022877223501250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386857 + ... + 388006.

It is an arithmetic number, because the mean of its divisors is an integer number (48041568).

Almost surely, 2^445546225 is an apocalyptic number.

It is an amenable number.

445546225 is a deficient number, since it is larger than the sum of its proper divisors (130952591).

445546225 is a wasteful number, since it uses less digits than its factorization.

445546225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774896 (or 774891 counting only the distinct ones).

The product of its digits is 192000, while the sum is 37.

The square root of 445546225 is about 21107.9659133702. The cubic root of 445546225 is about 763.7729199354.

The spelling of 445546225 in words is "four hundred forty-five million, five hundred forty-six thousand, two hundred twenty-five".