515471616 has 243 divisors, whose sum is σ = 1672501467. Its totient is φ = 152570880.

The previous prime is 515471597. The next prime is 515471617. The reversal of 515471616 is 616174515.

It is a happy number.

The square root of 515471616 is 22704.

It is a perfect power (a square), and thus also a powerful number.

515471616 is a `hidden beast` number, since 51 + 547 + 1 + 61 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (515471617) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11987691 + ... + 11987733.

Almost surely, 2^515471616 is an apocalyptic number.

515471616 is the 22704-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515471616

515471616 is an abundant number, since it is smaller than the sum of its proper divisors (1157029851).

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

515471616 is a wasteful number, since it uses less digits than its factorization.

515471616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 59 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The cubic root of 515471616 is about 801.8040619757.

Multiplying 515471616 by its sum of digits (36), we get a square (18556978176 = 136224²).

515471616 divided by its sum of digits (36) gives a square (14318656 = 3784²).

The spelling of 515471616 in words is "five hundred fifteen million, four hundred seventy-one thousand, six hundred sixteen".