515207472 has 80 divisors (see below), whose sum is σ = 1449594720. Its totient is φ = 156727296.

The previous prime is 515207471. The next prime is 515207489. The reversal of 515207472 is 274702515.

It is not an unprimeable number, because it can be changed into a prime (515207471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50898 + ... + 60174.

It is an arithmetic number, because the mean of its divisors is an integer number (18119934).

Almost surely, 2^515207472 is an apocalyptic number.

515207472 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515207472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724797360).

515207472 is an abundant number, since it is smaller than the sum of its proper divisors (934387248).

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

515207472 is a wasteful number, since it uses less digits than its factorization.

515207472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390 (or 9384 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 515207472 is about 22698.1821298535. The cubic root of 515207472 is about 801.6670819674.

Adding to 515207472 its reverse (274702515), we get a palindrome (789909987).

The spelling of 515207472 in words is "five hundred fifteen million, two hundred seven thousand, four hundred seventy-two".