521097080 has 32 divisors (see below), whose sum is σ = 1339964640. Its totient is φ = 178661760.

The previous prime is 521097053. The next prime is 521097089. The reversal of 521097080 is 80790125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521097089) 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, 930251 + ... + 930810.

It is an arithmetic number, because the mean of its divisors is an integer number (41873895).

Almost surely, 2^521097080 is an apocalyptic number.

It is an amenable number.

521097080 is an abundant number, since it is smaller than the sum of its proper divisors (818867560).

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

521097080 is a wasteful number, since it uses less digits than its factorization.

521097080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861079 (or 1861075 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 521097080 is about 22827.5508979829. The cubic root of 521097080 is about 804.7102747103.

The spelling of 521097080 in words is "five hundred twenty-one million, ninety-seven thousand, eighty".