520296553 has 12 divisors (see below), whose sum is σ = 621603012. Its totient is φ = 433913760.

The previous prime is 520296487. The next prime is 520296559. The reversal of 520296553 is 355692025.

It can be written as a sum of positive squares in 2 ways, for example, as 312158224 + 208138329 = 17668^2 + 14427^2 .

It is not a de Polignac number, because 520296553 - 2¹³ = 520288361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520296559) 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 11 ways as a sum of consecutive naturals, for example, 141678 + ... + 145303.

It is an arithmetic number, because the mean of its divisors is an integer number (51800251).

Almost surely, 2^520296553 is an apocalyptic number.

It is an amenable number.

520296553 is a deficient number, since it is larger than the sum of its proper divisors (101306459).

520296553 is a wasteful number, since it uses less digits than its factorization.

520296553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287032 (or 287025 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 520296553 is about 22810.0099298532. The cubic root of 520296553 is about 804.2979891143.

The spelling of 520296553 in words is "five hundred twenty million, two hundred ninety-six thousand, five hundred fifty-three".