215081032550 has 12 divisors (see below), whose sum is σ = 400050720636. Its totient is φ = 86032413000.

The previous prime is 215081032547. The next prime is 215081032553. The reversal of 215081032550 is 55230180512.

It is an interprime number because it is at equal distance from previous prime (215081032547) and next prime (215081032553).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215081032553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2150810276 + ... + 2150810375.

It is an arithmetic number, because the mean of its divisors is an integer number (33337560053).

Almost surely, 2^215081032550 is an apocalyptic number.

215081032550 is a deficient number, since it is larger than the sum of its proper divisors (184969688086).

215081032550 is a wasteful number, since it uses less digits than its factorization.

215081032550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301620663 (or 4301620658 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 215081032550 in words is "two hundred fifteen billion, eighty-one million, thirty-two thousand, five hundred fifty".