42125504 has 14 divisors (see below), whose sum is σ = 83592924. Its totient is φ = 21062720.

The previous prime is 42125477. The next prime is 42125521. The reversal of 42125504 is 40552124.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42125504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329042 + ... + 329169.

Almost surely, 2^42125504 is an apocalyptic number.

It is an amenable number.

42125504 is a deficient number, since it is larger than the sum of its proper divisors (41467420).

42125504 is an equidigital number, since it uses as much as digits as its factorization.

42125504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658223 (or 658213 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 42125504 is about 6490.4163194667. The cubic root of 42125504 is about 347.9485545125.

Adding to 42125504 its reverse (40552124), we get a palindrome (82677628).

The spelling of 42125504 in words is "forty-two million, one hundred twenty-five thousand, five hundred four".