515016090 has 64 divisors (see below), whose sum is σ = 1445673600. Its totient is φ = 130108032.

The previous prime is 515016053. The next prime is 515016091. The reversal of 515016090 is 90610515.

515016090 is a `hidden beast` number, since 5 + 1 + 50 + 1 + 609 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (515016091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45067 + ... + 55326.

It is an arithmetic number, because the mean of its divisors is an integer number (22588650).

Almost surely, 2^515016090 is an apocalyptic number.

515016090 is an abundant number, since it is smaller than the sum of its proper divisors (930657510).

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

515016090 is a wasteful number, since it uses less digits than its factorization.

515016090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100428 (or 100422 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 515016090 is about 22693.9659381079. The cubic root of 515016090 is about 801.5678056829.

The spelling of 515016090 in words is "five hundred fifteen million, sixteen thousand, ninety".