515365230 has 64 divisors (see below), whose sum is σ = 1279955520. Its totient is φ = 132701184.

The previous prime is 515365129. The next prime is 515365241. The reversal of 515365230 is 32563515.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150376 + ... + 153764.

It is an arithmetic number, because the mean of its divisors is an integer number (19999305).

Almost surely, 2^515365230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515365230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639977760).

515365230 is an abundant number, since it is smaller than the sum of its proper divisors (764590290).

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

515365230 is a wasteful number, since it uses less digits than its factorization.

515365230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 515365230 is about 22701.6569879822. The cubic root of 515365230 is about 801.7488978676.

The spelling of 515365230 in words is "five hundred fifteen million, three hundred sixty-five thousand, two hundred thirty".