521314545 has 16 divisors (see below), whose sum is σ = 835280640. Its totient is φ = 277641984.

The previous prime is 521314543. The next prime is 521314561. The reversal of 521314545 is 545413125.

It is not a de Polignac number, because 521314545 - 2¹ = 521314543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (521314543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13384 + ... + 34953.

It is an arithmetic number, because the mean of its divisors is an integer number (52205040).

Almost surely, 2^521314545 is an apocalyptic number.

It is an amenable number.

521314545 is a deficient number, since it is larger than the sum of its proper divisors (313966095).

521314545 is a wasteful number, since it uses less digits than its factorization.

521314545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49064.

The product of its digits is 12000, while the sum is 30.

The square root of 521314545 is about 22832.3136146997. The cubic root of 521314545 is about 804.8222001007.

The spelling of 521314545 in words is "five hundred twenty-one million, three hundred fourteen thousand, five hundred forty-five".