515053172 has 24 divisors (see below), whose sum is σ = 927834600. Its totient is φ = 249989760.

The previous prime is 515053157. The next prime is 515053207. The reversal of 515053172 is 271350515.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 220106896 + 294946276 = 14836^2 + 17174^2 .

It is a super-3 number, since 3×515053172³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64454 + ... + 72002.

It is an arithmetic number, because the mean of its divisors is an integer number (38659775).

Almost surely, 2^515053172 is an apocalyptic number.

It is an amenable number.

515053172 is a deficient number, since it is larger than the sum of its proper divisors (412781428).

515053172 is a wasteful number, since it uses less digits than its factorization.

515053172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051 (or 8049 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 515053172 is about 22694.7829247164. The cubic root of 515053172 is about 801.5870432851.

The spelling of 515053172 in words is "five hundred fifteen million, fifty-three thousand, one hundred seventy-two".