515404052 has 12 divisors (see below), whose sum is σ = 914661216. Its totient is φ = 254072280.

The previous prime is 515404049. The next prime is 515404061. The reversal of 515404052 is 250404515.

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, 907118 + ... + 907685.

It is an arithmetic number, because the mean of its divisors is an integer number (76221768).

Almost surely, 2^515404052 is an apocalyptic number.

It is an amenable number.

515404052 is a deficient number, since it is larger than the sum of its proper divisors (399257164).

515404052 is a wasteful number, since it uses less digits than its factorization.

515404052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814878 (or 1814876 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 515404052 is about 22702.5120195982. The cubic root of 515404052 is about 801.7690290369.

Adding to 515404052 its reverse (250404515), we get a palindrome (765808567).

The spelling of 515404052 in words is "five hundred fifteen million, four hundred four thousand, fifty-two".