215131251000050 has 48 divisors (see below), whose sum is σ = 498880989340992. Its totient is φ = 67053896414400.

The previous prime is 215131251000031. The next prime is 215131251000059. The reversal of 215131251000050 is 50000152131512.

215131251000050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215131250999983 and 215131251000019.

It is not an unprimeable number, because it can be changed into a prime (215131251000059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27939119657 + ... + 27939127356.

It is an arithmetic number, because the mean of its divisors is an integer number (10393353944604).

Almost surely, 2^{215131251000050} is an apocalyptic number.

215131251000050 is an abundant number, since it is smaller than the sum of its proper divisors (283749738340942).

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

215131251000050 is a wasteful number, since it uses less digits than its factorization.

215131251000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55878247043 (or 55878247038 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 215131251000050 in words is "two hundred fifteen trillion, one hundred thirty-one billion, two hundred fifty-one million, fifty", and thus it is an aban number.