422250025 has 6 divisors (see below), whose sum is σ = 523590062. Its totient is φ = 337800000.

The previous prime is 422250019. The next prime is 422250041. The reversal of 422250025 is 520052224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 522729 + 421727296 = 723^2 + 20536^2 .

It is a de Polignac number, because none of the positive numbers 2^k-422250025 is a prime.

It is a super-2 number, since 2×422250025² = 356590167225001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422249978 and 422250005.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8444976 + ... + 8445025.

Almost surely, 2^422250025 is an apocalyptic number.

It is an amenable number.

422250025 is a deficient number, since it is larger than the sum of its proper divisors (101340037).

422250025 is a wasteful number, since it uses less digits than its factorization.

422250025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890011 (or 16890006 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 422250025 is about 20548.7231963448. The cubic root of 422250025 is about 750.2221712171. Note that the first 3 decimals are identical.

The spelling of 422250025 in words is "four hundred twenty-two million, two hundred fifty thousand, twenty-five".