422625545 has 4 divisors (see below), whose sum is σ = 507150660. Its totient is φ = 338100432.

The previous prime is 422625523. The next prime is 422625547. The reversal of 422625545 is 545526224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 249545209 + 173080336 = 15797^2 + 13156^2 .

It is a cyclic number.

It is not a de Polignac number, because 422625545 - 2¹⁶ = 422560009 is a prime.

It is a super-2 number, since 2×422625545² = 357224702573094050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422625547) 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, 42262550 + ... + 42262559.

It is an arithmetic number, because the mean of its divisors is an integer number (126787665).

Almost surely, 2^422625545 is an apocalyptic number.

It is an amenable number.

422625545 is a deficient number, since it is larger than the sum of its proper divisors (84525115).

422625545 is an equidigital number, since it uses as much as digits as its factorization.

422625545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84525114.

The product of its digits is 96000, while the sum is 35.

The square root of 422625545 is about 20557.8584730998. The cubic root of 422625545 is about 750.4445039104. Note that the first 3 decimals are identical.

The spelling of 422625545 in words is "four hundred twenty-two million, six hundred twenty-five thousand, five hundred forty-five".