423500025 has 48 divisors (see below), whose sum is σ = 793768640. Its totient is φ = 197510400.

The previous prime is 423499997. The next prime is 423500027. The reversal of 423500025 is 520005324.

It is not a de Polignac number, because 423500025 - 2¹⁹ = 422975737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423499974 and 423500010.

It is not an unprimeable number, because it can be changed into a prime (423500027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7095 + ... + 29955.

Almost surely, 2^423500025 is an apocalyptic number.

It is an amenable number.

423500025 is a deficient number, since it is larger than the sum of its proper divisors (370268615).

423500025 is a wasteful number, since it uses less digits than its factorization.

423500025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22906 (or 22901 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 423500025 is about 20579.1162346686. The cubic root of 423500025 is about 750.9617439820.

Adding to 423500025 its reverse (520005324), we get a palindrome (943505349).

The spelling of 423500025 in words is "four hundred twenty-three million, five hundred thousand, twenty-five".