515053040 has 20 divisors (see below), whose sum is σ = 1197498504. Its totient is φ = 206021184.

The previous prime is 515053039. The next prime is 515053069. The reversal of 515053040 is 40350515.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 515052997 and 515053015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3219002 + ... + 3219161.

Almost surely, 2^515053040 is an apocalyptic number.

It is an amenable number.

515053040 is an abundant number, since it is smaller than the sum of its proper divisors (682445464).

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

515053040 is a wasteful number, since it uses less digits than its factorization.

515053040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438176 (or 6438170 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 515053040 is about 22694.7800165589. The cubic root of 515053040 is about 801.5869748070.

It can be divided in two parts, 51505 and 3040, that added together give a palindrome (54545).

The spelling of 515053040 in words is "five hundred fifteen million, fifty-three thousand, forty".