42089825 has 12 divisors (see below), whose sum is σ = 52576620. Its totient is φ = 33423360.

The previous prime is 42089813. The next prime is 42089837. The reversal of 42089825 is 52898024.

It is an interprime number because it is at equal distance from previous prime (42089813) and next prime (42089837).

It can be written as a sum of positive squares in 6 ways, for example, as 190096 + 41899729 = 436^2 + 6473^2 .

It is not a de Polignac number, because 42089825 - 2⁴ = 42089809 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2720 + ... + 9569.

It is an arithmetic number, because the mean of its divisors is an integer number (4381385).

Almost surely, 2^42089825 is an apocalyptic number.

It is an amenable number.

42089825 is a deficient number, since it is larger than the sum of its proper divisors (10486795).

42089825 is a wasteful number, since it uses less digits than its factorization.

42089825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12436 (or 12431 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 42089825 is about 6487.6671462090. The cubic root of 42089825 is about 347.8502928750.

The spelling of 42089825 in words is "forty-two million, eighty-nine thousand, eight hundred twenty-five".