42501 has 8 divisors (see below), whose sum is σ = 58624. Its totient is φ = 27360.

The previous prime is 42499. The next prime is 42509. The reversal of 42501 is 10524.

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

It is not a de Polignac number, because 42501 - 2¹ = 42499 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136 + ... + 321.

It is an arithmetic number, because the mean of its divisors is an integer number (7328).

2⁴²⁵⁰¹ is an apocalyptic number.

It is an amenable number.

42501 is a deficient number, since it is larger than the sum of its proper divisors (16123).

42501 is a wasteful number, since it uses less digits than its factorization.

42501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 42501 is about 206.1577066229. The cubic root of 42501 is about 34.8979339395.

The spelling of 42501 in words is "forty-two thousand, five hundred one".