515207473 has 8 divisors (see below), whose sum is σ = 566690976. Its totient is φ = 468369220.

The previous prime is 515207471. The next prime is 515207489. The reversal of 515207473 is 374702515.

It is not a de Polignac number, because 515207473 - 2¹ = 515207471 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 192211 + ... + 194872.

It is an arithmetic number, because the mean of its divisors is an integer number (70836372).

Almost surely, 2^515207473 is an apocalyptic number.

It is an amenable number.

515207473 is a deficient number, since it is larger than the sum of its proper divisors (51483503).

515207473 is an equidigital number, since it uses as much as digits as its factorization.

515207473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387116 (or 387094 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 515207473 is about 22698.1821518817. The cubic root of 515207473 is about 801.6670824861.

Adding to 515207473 its reverse (374702515), we get a palindrome (889909988).

It can be divided in two parts, 51 and 5207473, that added together give a square (5207524 = 2282²).

The spelling of 515207473 in words is "five hundred fifteen million, two hundred seven thousand, four hundred seventy-three".