42925625 has 20 divisors (see below), whose sum is σ = 54085812. Its totient is φ = 34056000.

The previous prime is 42925621. The next prime is 42925633. The reversal of 42925625 is 52652924.

It can be written as a sum of positive squares in 10 ways, for example, as 19616041 + 23309584 = 4429^2 + 4828^2 .

It is not a de Polignac number, because 42925625 - 2² = 42925621 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42925621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 107927 + ... + 108323.

Almost surely, 2^42925625 is an apocalyptic number.

It is an amenable number.

42925625 is a deficient number, since it is larger than the sum of its proper divisors (11160187).

42925625 is an equidigital number, since it uses as much as digits as its factorization.

42925625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 575 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 42925625 is about 6551.7650293642. The cubic root of 42925625 is about 350.1377009191.

The spelling of 42925625 in words is "forty-two million, nine hundred twenty-five thousand, six hundred twenty-five".