515050090 has 8 divisors (see below), whose sum is σ = 927090180. Its totient is φ = 206020032.

The previous prime is 515050079. The next prime is 515050093. The reversal of 515050090 is 90050515.

It can be written as a sum of positive squares in 2 ways, for example, as 514972249 + 77841 = 22693^2 + 279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (515050093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25752495 + ... + 25752514.

Almost surely, 2^515050090 is an apocalyptic number.

515050090 is a deficient number, since it is larger than the sum of its proper divisors (412040090).

515050090 is a wasteful number, since it uses less digits than its factorization.

515050090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51505016.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 515050090 is about 22694.7150235468. The cubic root of 515050090 is about 801.5854444235.

The spelling of 515050090 in words is "five hundred fifteen million, fifty thousand, ninety".