520457045 has 4 divisors (see below), whose sum is σ = 624548460. Its totient is φ = 416365632.

The previous prime is 520457029. The next prime is 520457053. The reversal of 520457045 is 540754025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65189476 + 455267569 = 8074^2 + 21337^2 .

It is a cyclic number.

It is not a de Polignac number, because 520457045 - 2⁴ = 520457029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52045700 + ... + 52045709.

It is an arithmetic number, because the mean of its divisors is an integer number (156137115).

Almost surely, 2^520457045 is an apocalyptic number.

It is an amenable number.

520457045 is a deficient number, since it is larger than the sum of its proper divisors (104091415).

520457045 is a wasteful number, since it uses less digits than its factorization.

520457045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104091414.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 520457045 is about 22813.5276754824. The cubic root of 520457045 is about 804.3806792147.

The spelling of 520457045 in words is "five hundred twenty million, four hundred fifty-seven thousand, forty-five".