422951625 has 80 divisors (see below), whose sum is σ = 810535440. Its totient is φ = 219283200.

The previous prime is 422951591. The next prime is 422951629. The reversal of 422951625 is 526159224.

422951625 is a `hidden beast` number, since 4 + 2 + 29 + 5 + 1 + 625 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 143928009 + 279023616 = 11997^2 + 16704^2 .

It is not a de Polignac number, because 422951625 - 2⁷ = 422951497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422951625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422951629) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 374061 + ... + 375189.

It is an arithmetic number, because the mean of its divisors is an integer number (10131693).

Almost surely, 2^422951625 is an apocalyptic number.

422951625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422951625 is a deficient number, since it is larger than the sum of its proper divisors (387583815).

422951625 is a wasteful number, since it uses less digits than its factorization.

422951625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1174 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 422951625 is about 20565.7877310839. The cubic root of 422951625 is about 750.6374580428.

The spelling of 422951625 in words is "four hundred twenty-two million, nine hundred fifty-one thousand, six hundred twenty-five".