520998551097 has 8 divisors (see below), whose sum is σ = 694669157856. Its totient is φ = 347330155872.

The previous prime is 520998551093. The next prime is 520998551119. The reversal of 520998551097 is 790155899025.

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

It is not a de Polignac number, because 520998551097 - 2² = 520998551093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520998551097.

It is not an unprimeable number, because it can be changed into a prime (520998551093) 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, 110533 + ... + 1026749.

It is an arithmetic number, because the mean of its divisors is an integer number (86833644732).

Almost surely, 2^520998551097 is an apocalyptic number.

It is an amenable number.

520998551097 is a deficient number, since it is larger than the sum of its proper divisors (173670606759).

520998551097 is a wasteful number, since it uses less digits than its factorization.

520998551097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105767.

The product of its (nonzero) digits is 10206000, while the sum is 60.

The spelling of 520998551097 in words is "five hundred twenty billion, nine hundred ninety-eight million, five hundred fifty-one thousand, ninety-seven".