520794645 has 16 divisors (see below), whose sum is σ = 952310400. Its totient is φ = 238077504.

The previous prime is 520794641. The next prime is 520794661. The reversal of 520794645 is 546497025.

It is not a de Polignac number, because 520794645 - 2² = 520794641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520794597 and 520794606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520794641) 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, 2479870 + ... + 2480079.

It is an arithmetic number, because the mean of its divisors is an integer number (59519400).

Almost surely, 2^520794645 is an apocalyptic number.

It is an amenable number.

520794645 is a deficient number, since it is larger than the sum of its proper divisors (431515755).

520794645 is a wasteful number, since it uses less digits than its factorization.

520794645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959964.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 520794645 is about 22820.9255947256. The cubic root of 520794645 is about 804.5545649847.

The spelling of 520794645 in words is "five hundred twenty million, seven hundred ninety-four thousand, six hundred forty-five".