215301454255 has 8 divisors (see below), whose sum is σ = 259908822432. Its totient is φ = 171209778528.

The previous prime is 215301454241. The next prime is 215301454261. The reversal of 215301454255 is 552454103512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215301454255 - 2¹⁷ = 215301323183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128922192 + ... + 128923861.

It is an arithmetic number, because the mean of its divisors is an integer number (32488602804).

Almost surely, 2^215301454255 is an apocalyptic number.

215301454255 is a deficient number, since it is larger than the sum of its proper divisors (44607368177).

215301454255 is a wasteful number, since it uses less digits than its factorization.

215301454255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257846225.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 215301454255 its reverse (552454103512), we get a palindrome (767755557767).

The spelling of 215301454255 in words is "two hundred fifteen billion, three hundred one million, four hundred fifty-four thousand, two hundred fifty-five".