515555130042 has 32 divisors (see below), whose sum is σ = 1170054201600. Its totient is φ = 168195289824.

The previous prime is 515555130031. The next prime is 515555130073. The reversal of 515555130042 is 240031555515.

515555130042 is a `hidden beast` number, since 51 + 5 + 55 + 513 + 0 + 0 + 42 = 666.

It is a super-2 number, since 2×515555130042² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 515555129979 and 515555130006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101564667 + ... + 101569742.

It is an arithmetic number, because the mean of its divisors is an integer number (36564193800).

Almost surely, 2^515555130042 is an apocalyptic number.

515555130042 is an abundant number, since it is smaller than the sum of its proper divisors (654499071558).

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

515555130042 is a wasteful number, since it uses less digits than its factorization.

515555130042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203134467 (or 203134461 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

Adding to 515555130042 its reverse (240031555515), we get a palindrome (755586685557).

The spelling of 515555130042 in words is "five hundred fifteen billion, five hundred fifty-five million, one hundred thirty thousand, forty-two".