42837505 has 8 divisors (see below), whose sum is σ = 53063424. Its totient is φ = 33164400.

The previous prime is 42837469. The next prime is 42837517. The reversal of 42837505 is 50573824.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-42837505 is a prime.

It is a Duffinian 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, 138031 + ... + 138340.

It is an arithmetic number, because the mean of its divisors is an integer number (6632928).

Almost surely, 2^42837505 is an apocalyptic number.

It is an amenable number.

42837505 is a deficient number, since it is larger than the sum of its proper divisors (10225919).

42837505 is a wasteful number, since it uses less digits than its factorization.

42837505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276407.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 42837505 is about 6545.0366691104. The cubic root of 42837505 is about 349.8979430331.

The spelling of 42837505 in words is "forty-two million, eight hundred thirty-seven thousand, five hundred five".