215533430341125 has 64 divisors (see below), whose sum is σ = 392567643896064. Its totient is φ = 104369277600000.

The previous prime is 215533430341123. The next prime is 215533430341171. The reversal of 215533430341125 is 521143034335512.

It is not a de Polignac number, because 215533430341125 - 2¹ = 215533430341123 is a prime.

It is a super-2 number, since 2×215533430341125² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215533430341123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 362095951 + ... + 362690700.

It is an arithmetic number, because the mean of its divisors is an integer number (6133869435876).

Almost surely, 2^{215533430341125} is an apocalyptic number.

215533430341125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215533430341125 is a deficient number, since it is larger than the sum of its proper divisors (177034213554939).

215533430341125 is a wasteful number, since it uses less digits than its factorization.

215533430341125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724786743 (or 724786733 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 215533430341125 its reverse (521143034335512), we get a palindrome (736676464676637).

The spelling of 215533430341125 in words is "two hundred fifteen trillion, five hundred thirty-three billion, four hundred thirty million, three hundred forty-one thousand, one hundred twenty-five".