215025313030 has 64 divisors (see below), whose sum is σ = 433779494400. Its totient is φ = 76063532800.

The previous prime is 215025312977. The next prime is 215025313033. The reversal of 215025313030 is 30313520512.

It is a junction number, because it is equal to n+sod(n) for n = 215025312986 and 215025313004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215025313033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1496271 + ... + 1633669.

It is an arithmetic number, because the mean of its divisors is an integer number (6777804600).

Almost surely, 2^215025313030 is an apocalyptic number.

215025313030 is an abundant number, since it is smaller than the sum of its proper divisors (218754181370).

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

215025313030 is a wasteful number, since it uses less digits than its factorization.

215025313030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137805.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 215025313030 its reverse (30313520512), we get a palindrome (245338833542).

The spelling of 215025313030 in words is "two hundred fifteen billion, twenty-five million, three hundred thirteen thousand, thirty".