422510025 has 48 divisors (see below), whose sum is σ = 815376384. Its totient is φ = 189026880.

The previous prime is 422509979. The next prime is 422510059. The reversal of 422510025 is 520015224.

It is a happy number.

It is not a de Polignac number, because 422510025 - 2¹⁹ = 421985737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 422509983 and 422510010.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16114 + ... + 33236.

It is an arithmetic number, because the mean of its divisors is an integer number (16987008).

Almost surely, 2^422510025 is an apocalyptic number.

It is an amenable number.

422510025 is a deficient number, since it is larger than the sum of its proper divisors (392866359).

422510025 is a wasteful number, since it uses less digits than its factorization.

422510025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17190 (or 17185 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 422510025 is about 20555.0486499059. The cubic root of 422510025 is about 750.3761224554.

Adding to 422510025 its reverse (520015224), we get a palindrome (942525249).

The spelling of 422510025 in words is "four hundred twenty-two million, five hundred ten thousand, twenty-five".