520630671 has 16 divisors (see below), whose sum is σ = 767658240. Its totient is φ = 311209920.

The previous prime is 520630657. The next prime is 520630711. The reversal of 520630671 is 176036025.

It is not a de Polignac number, because 520630671 - 2¹⁷ = 520499599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520630171) 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, 105651 + ... + 110468.

It is an arithmetic number, because the mean of its divisors is an integer number (47978640).

Almost surely, 2^520630671 is an apocalyptic number.

520630671 is a deficient number, since it is larger than the sum of its proper divisors (247027569).

520630671 is a wasteful number, since it uses less digits than its factorization.

520630671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216206.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 520630671 is about 22817.3326881123. The cubic root of 520630671 is about 804.4701171895.

Adding to 520630671 its reverse (176036025), we get a palindrome (696666696).

It can be divided in two parts, 5 and 20630671, that added together give a triangular number (20630676 = T₆₄₂₃).

The spelling of 520630671 in words is "five hundred twenty million, six hundred thirty thousand, six hundred seventy-one".