42541501 has 4 divisors (see below), whose sum is σ = 42931900. Its totient is φ = 42151104.

The previous prime is 42541483. The next prime is 42541507. The reversal of 42541501 is 10514524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14175225 + 28366276 = 3765^2 + 5326^2 .

It is a cyclic number.

It is not a de Polignac number, because 42541501 - 2⁹ = 42540989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42541507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195036 + ... + 195253.

It is an arithmetic number, because the mean of its divisors is an integer number (10732975).

Almost surely, 2^42541501 is an apocalyptic number.

It is an amenable number.

42541501 is a deficient number, since it is larger than the sum of its proper divisors (390399).

42541501 is a wasteful number, since it uses less digits than its factorization.

42541501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390398.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 42541501 is about 6522.3846099414. The cubic root of 42541501 is about 349.0901565916.

The spelling of 42541501 in words is "forty-two million, five hundred forty-one thousand, five hundred one".