521220096 has 130 divisors (see below), whose sum is σ = 1558026492. Its totient is φ = 173629440.

The previous prime is 521220079. The next prime is 521220107. The reversal of 521220096 is 690022125.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 330991 + ... + 332561.

Almost surely, 2^521220096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521220096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779013246).

521220096 is an abundant number, since it is smaller than the sum of its proper divisors (1036806396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521220096 is an equidigital number, since it uses as much as digits as its factorization.

521220096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 521220096 is about 22830.2452023626. The cubic root of 521220096 is about 804.7735926948.

The spelling of 521220096 in words is "five hundred twenty-one million, two hundred twenty thousand, ninety-six".