520390007 has 8 divisors (see below), whose sum is σ = 542211600. Its totient is φ = 498826944.

The previous prime is 520389977. The next prime is 520390037. The reversal of 520390007 is 700093025.

It is an interprime number because it is at equal distance from previous prime (520389977) and next prime (520390037).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520390007 - 2¹⁰ = 520388983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520390037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60518 + ... + 68579.

It is an arithmetic number, because the mean of its divisors is an integer number (67776450).

Almost surely, 2^520390007 is an apocalyptic number.

520390007 is a deficient number, since it is larger than the sum of its proper divisors (21821593).

520390007 is a wasteful number, since it uses less digits than its factorization.

520390007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129265.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 520390007 is about 22812.0583683279. The cubic root of 520390007 is about 804.3461413741.

The spelling of 520390007 in words is "five hundred twenty million, three hundred ninety thousand, seven".