520012050545 has 32 divisors (see below), whose sum is σ = 688517099424. Its totient is φ = 374582476800.

The previous prime is 520012050539. The next prime is 520012050553. The reversal of 520012050545 is 545050210025.

It can be written as a sum of positive squares in 16 ways, for example, as 184974827569 + 335037222976 = 430087^2 + 578824^2 .

It is not a de Polignac number, because 520012050545 - 2⁸ = 520012050289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22675685 + ... + 22698605.

It is an arithmetic number, because the mean of its divisors is an integer number (21516159357).

Almost surely, 2^520012050545 is an apocalyptic number.

It is an amenable number.

520012050545 is a deficient number, since it is larger than the sum of its proper divisors (168505048879).

520012050545 is a wasteful number, since it uses less digits than its factorization.

520012050545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31493.

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 520012050545 in words is "five hundred twenty billion, twelve million, fifty thousand, five hundred forty-five".