42125542 has 8 divisors (see below), whose sum is σ = 63215856. Its totient is φ = 21053592.

The previous prime is 42125537. The next prime is 42125543. The reversal of 42125542 is 24552124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42125542² = 3549122577587528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42125543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6703 + ... + 11365.

It is an arithmetic number, because the mean of its divisors is an integer number (7901982).

Almost surely, 2^42125542 is an apocalyptic number.

42125542 is a deficient number, since it is larger than the sum of its proper divisors (21090314).

42125542 is a wasteful number, since it uses less digits than its factorization.

42125542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9182.

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

The square root of 42125542 is about 6490.4192468592. The cubic root of 42125542 is about 347.9486591367.

Adding to 42125542 its reverse (24552124), we get a palindrome (66677666).

The spelling of 42125542 in words is "forty-two million, one hundred twenty-five thousand, five hundred forty-two".