42425125 has 16 divisors (see below), whose sum is σ = 54383472. Its totient is φ = 33019200.

The previous prime is 42425113. The next prime is 42425147. The reversal of 42425125 is 52152424.

42425125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 17164449 + 25260676 = 4143^2 + 5026^2 .

It is not a de Polignac number, because 42425125 - 2⁵ = 42425093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42425125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39 + ... + 9211.

It is an arithmetic number, because the mean of its divisors is an integer number (3398967).

Almost surely, 2^42425125 is an apocalyptic number.

It is an amenable number.

42425125 is a deficient number, since it is larger than the sum of its proper divisors (11958347).

42425125 is an equidigital number, since it uses as much as digits as its factorization.

42425125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225 (or 9215 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 42425125 is about 6513.4572233185. The cubic root of 42425125 is about 348.7715436561.

Adding to 42425125 its reverse (52152424), we get a palindrome (94577549).

The spelling of 42425125 in words is "forty-two million, four hundred twenty-five thousand, one hundred twenty-five".