42520301 has 4 divisors (see below), whose sum is σ = 42646812. Its totient is φ = 42393792.

The previous prime is 42520273. The next prime is 42520327. The reversal of 42520301 is 10302524.

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 9916201 + 32604100 = 3149^2 + 5710^2 .

It is a cyclic number.

It is not a de Polignac number, because 42520301 - 2¹⁰ = 42519277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42520301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520381) 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, 62750 + ... + 63423.

It is an arithmetic number, because the mean of its divisors is an integer number (10661703).

Almost surely, 2^42520301 is an apocalyptic number.

It is an amenable number.

42520301 is a deficient number, since it is larger than the sum of its proper divisors (126511).

42520301 is a wasteful number, since it uses less digits than its factorization.

42520301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126510.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 42520301 is about 6520.7592349358. The cubic root of 42520301 is about 349.0321587868.

Adding to 42520301 its reverse (10302524), we get a palindrome (52822825).

The spelling of 42520301 in words is "forty-two million, five hundred twenty thousand, three hundred one".