42252637 has 16 divisors (see below), whose sum is σ = 51062400. Its totient is φ = 34153920.

The previous prime is 42252629. The next prime is 42252649. The reversal of 42252637 is 73625224.

42252637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42252637 - 2³ = 42252629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42252599 and 42252608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252677) by changing a digit.

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, 35187 + ... + 36367.

It is an arithmetic number, because the mean of its divisors is an integer number (3191400).

Almost surely, 2^42252637 is an apocalyptic number.

It is an amenable number.

42252637 is a deficient number, since it is larger than the sum of its proper divisors (8809763).

42252637 is a wasteful number, since it uses less digits than its factorization.

42252637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476.

The product of its digits is 20160, while the sum is 31.

The square root of 42252637 is about 6500.2028429888. The cubic root of 42252637 is about 348.2982343447.

The spelling of 42252637 in words is "forty-two million, two hundred fifty-two thousand, six hundred thirty-seven".