421022625 has 32 divisors (see below), whose sum is σ = 723201024. Its totient is φ = 217296000.

The previous prime is 421022611. The next prime is 421022633. The reversal of 421022625 is 526220124.

It is a happy number.

It is not a de Polignac number, because 421022625 - 2⁸ = 421022369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421022595 and 421022604.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6484 + ... + 29733.

It is an arithmetic number, because the mean of its divisors is an integer number (22600032).

Almost surely, 2^421022625 is an apocalyptic number.

It is an amenable number.

421022625 is a deficient number, since it is larger than the sum of its proper divisors (302178399).

421022625 is a wasteful number, since it uses less digits than its factorization.

421022625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36266 (or 36256 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 421022625 is about 20518.8358587908. The cubic root of 421022625 is about 749.4945483235.

Adding to 421022625 its reverse (526220124), we get a palindrome (947242749).

The spelling of 421022625 in words is "four hundred twenty-one million, twenty-two thousand, six hundred twenty-five".