542566225 has 12 divisors (see below), whose sum is σ = 678083584. Its totient is φ = 430632720.

The previous prime is 542566207. The next prime is 542566253. The reversal of 542566225 is 522665245.

It is not a de Polignac number, because 542566225 - 2²¹ = 540469073 is a prime.

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, 82269 + ... + 88618.

Almost surely, 2^542566225 is an apocalyptic number.

It is an amenable number.

542566225 is a deficient number, since it is larger than the sum of its proper divisors (135517359).

542566225 is a wasteful number, since it uses less digits than its factorization.

542566225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171024 (or 171019 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The square root of 542566225 is about 23293.0510023912. The cubic root of 542566225 is about 815.6132110763.

The spelling of 542566225 in words is "five hundred forty-two million, five hundred sixty-six thousand, two hundred twenty-five".