520280553 has 32 divisors (see below), whose sum is σ = 803174400. Its totient is φ = 296847936.

The previous prime is 520280543. The next prime is 520280557. The reversal of 520280553 is 355082025.

It is not a de Polignac number, because 520280553 - 2¹² = 520276457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520280553.

It is not an unprimeable number, because it can be changed into a prime (520280557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27358 + ... + 42296.

It is an arithmetic number, because the mean of its divisors is an integer number (25099200).

Almost surely, 2^520280553 is an apocalyptic number.

It is an amenable number.

520280553 is a deficient number, since it is larger than the sum of its proper divisors (282893847).

520280553 is a wasteful number, since it uses less digits than its factorization.

520280553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15021.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 520280553 is about 22809.6592039425. The cubic root of 520280553 is about 804.2897445214.

The spelling of 520280553 in words is "five hundred twenty million, two hundred eighty thousand, five hundred fifty-three".