520427542 has 4 divisors (see below), whose sum is σ = 780641316. Its totient is φ = 260213770.

The previous prime is 520427527. The next prime is 520427543. The reversal of 520427542 is 245724025.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520427543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130106884 + ... + 130106887.

It is an arithmetic number, because the mean of its divisors is an integer number (195160329).

Almost surely, 2^520427542 is an apocalyptic number.

520427542 is a deficient number, since it is larger than the sum of its proper divisors (260213774).

520427542 is a wasteful number, since it uses less digits than its factorization.

520427542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260213773.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 520427542 is about 22812.8810543517. The cubic root of 520427542 is about 804.3654796949.

The spelling of 520427542 in words is "five hundred twenty million, four hundred twenty-seven thousand, five hundred forty-two".