215350252530 has 64 divisors (see below), whose sum is σ = 593673442560. Its totient is φ = 48973042944.

The previous prime is 215350252519. The next prime is 215350252531. The reversal of 215350252530 is 35252053512.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 215350252491 and 215350252500.

It is not an unprimeable number, because it can be changed into a prime (215350252531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2561365 + ... + 2644104.

It is an arithmetic number, because the mean of its divisors is an integer number (9276147540).

Almost surely, 2^215350252530 is an apocalyptic number.

215350252530 is an abundant number, since it is smaller than the sum of its proper divisors (378323190030).

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

215350252530 is a wasteful number, since it uses less digits than its factorization.

215350252530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205683.

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 215350252530 in words is "two hundred fifteen billion, three hundred fifty million, two hundred fifty-two thousand, five hundred thirty".