215251425300000 has 576 divisors, whose sum is σ = 723032521706880. Its totient is φ = 56037596160000.

The previous prime is 215251425299983. The next prime is 215251425300001. The reversal of 215251425300000 is 3524152512.

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

It is not an unprimeable number, because it can be changed into a prime (215251425300001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44027697556 + ... + 44027702444.

It is an arithmetic number, because the mean of its divisors is an integer number (1255264794630).

Almost surely, 2^{215251425300000} is an apocalyptic number.

215251425300000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215251425300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361516260853440).

215251425300000 is an abundant number, since it is smaller than the sum of its proper divisors (507781096406880).

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

215251425300000 is an equidigital number, since it uses as much as digits as its factorization.

215251425300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8383 (or 8355 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 215251425300000 its reverse (3524152512), we get a palindrome (215254949452512).

The spelling of 215251425300000 in words is "two hundred fifteen trillion, two hundred fifty-one billion, four hundred twenty-five million, three hundred thousand".