42132425 has 6 divisors (see below), whose sum is σ = 52244238. Its totient is φ = 33705920.

The previous prime is 42132413. The next prime is 42132439. The reversal of 42132425 is 52423124.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8248384 + 33884041 = 2872^2 + 5821^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42132425 is a prime.

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 42132425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842624 + ... + 842673.

It is an arithmetic number, because the mean of its divisors is an integer number (8707373).

Almost surely, 2^42132425 is an apocalyptic number.

It is an amenable number.

42132425 is a deficient number, since it is larger than the sum of its proper divisors (10111813).

42132425 is a wasteful number, since it uses less digits than its factorization.

42132425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685307 (or 1685302 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 42132425 is about 6490.9494682981. The cubic root of 42132425 is about 347.9676088450.

Adding to 42132425 its reverse (52423124), we get a palindrome (94555549).

The spelling of 42132425 in words is "forty-two million, one hundred thirty-two thousand, four hundred twenty-five".