520012545 has 32 divisors (see below), whose sum is σ = 916874112. Its totient is φ = 250048512.

The previous prime is 520012529. The next prime is 520012547. The reversal of 520012545 is 545210025.

It is a happy number.

It is not a de Polignac number, because 520012545 - 2⁴ = 520012529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520012547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22624 + ... + 39393.

It is an arithmetic number, because the mean of its divisors is an integer number (28652316).

Almost surely, 2^520012545 is an apocalyptic number.

It is an amenable number.

520012545 is a deficient number, since it is larger than the sum of its proper divisors (396861567).

520012545 is a wasteful number, since it uses less digits than its factorization.

520012545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62081.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 520012545 is about 22803.7835676451. The cubic root of 520012545 is about 804.1516183331.

The spelling of 520012545 in words is "five hundred twenty million, twelve thousand, five hundred forty-five".