42520540351 has 4 divisors (see below), whose sum is σ = 42521141872. Its totient is φ = 42519938832.

The previous prime is 42520540327. The next prime is 42520540459. The reversal of 42520540351 is 15304502524.

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

It is a cyclic number.

It is not a de Polignac number, because 42520540351 - 2¹¹ = 42520538303 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 (42520550351) 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, 178035 + ... + 341668.

It is an arithmetic number, because the mean of its divisors is an integer number (10630285468).

Almost surely, 2^42520540351 is an apocalyptic number.

42520540351 is a deficient number, since it is larger than the sum of its proper divisors (601521).

42520540351 is an equidigital number, since it uses as much as digits as its factorization.

42520540351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601520.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 42520540351 in words is "forty-two billion, five hundred twenty million, five hundred forty thousand, three hundred fifty-one".