515530030 has 16 divisors (see below), whose sum is σ = 930346560. Its totient is φ = 205680352.

The previous prime is 515530007. The next prime is 515530039. The reversal of 515530030 is 30035515.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 515529983 and 515530010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515530039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62374 + ... + 70153.

It is an arithmetic number, because the mean of its divisors is an integer number (58146660).

Almost surely, 2^515530030 is an apocalyptic number.

515530030 is a deficient number, since it is larger than the sum of its proper divisors (414816530).

515530030 is a wasteful number, since it uses less digits than its factorization.

515530030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132923.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 515530030 is about 22705.2863888567. The cubic root of 515530030 is about 801.8343480360.

Adding to 515530030 its reverse (30035515), we get a palindrome (545565545).

The spelling of 515530030 in words is "five hundred fifteen million, five hundred thirty thousand, thirty".