520677401 has 4 divisors (see below), whose sum is σ = 522051600. Its totient is φ = 519303204.

The previous prime is 520677373. The next prime is 520677407. The reversal of 520677401 is 104776025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520677401 - 2⁶ = 520677337 is a prime.

It is a super-2 number, since 2×520677401² = 542209911824229602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520677407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686531 + ... + 687288.

It is an arithmetic number, because the mean of its divisors is an integer number (130512900).

Almost surely, 2^520677401 is an apocalyptic number.

It is an amenable number.

520677401 is a deficient number, since it is larger than the sum of its proper divisors (1374199).

520677401 is a wasteful number, since it uses less digits than its factorization.

520677401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374198.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 520677401 is about 22818.3566673851. The cubic root of 520677401 is about 804.4941852836.

The spelling of 520677401 in words is "five hundred twenty million, six hundred seventy-seven thousand, four hundred one".