42051508 has 24 divisors (see below), whose sum is σ = 76645800. Its totient is φ = 20162688.

The previous prime is 42051491. The next prime is 42051517. The reversal of 42051508 is 80515024.

It can be written as a sum of positive squares in 4 ways, for example, as 9012004 + 33039504 = 3002^2 + 5748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17058 + ... + 19366.

It is an arithmetic number, because the mean of its divisors is an integer number (3193575).

Almost surely, 2^42051508 is an apocalyptic number.

It is an amenable number.

42051508 is a deficient number, since it is larger than the sum of its proper divisors (34594292).

42051508 is a wasteful number, since it uses less digits than its factorization.

42051508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 42051508 is about 6484.7134092418. The cubic root of 42051508 is about 347.7447042018.

The spelling of 42051508 in words is "forty-two million, fifty-one thousand, five hundred eight".