215354542455253 has 16 divisors (see below), whose sum is σ = 227252893777920. Its totient is φ = 203802643335600.

The previous prime is 215354542455229. The next prime is 215354542455287. The reversal of 215354542455253 is 352554245453512.

215354542455253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 215354542455253 - 2⁹ = 215354542454741 is a prime.

It is a super-2 number, since 2×215354542455253² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215354542455194 and 215354542455203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215354542452253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307882125 + ... + 308580802.

It is an arithmetic number, because the mean of its divisors is an integer number (14203305861120).

Almost surely, 2^{215354542455253} is an apocalyptic number.

It is an amenable number.

215354542455253 is a deficient number, since it is larger than the sum of its proper divisors (11898351322667).

215354542455253 is a wasteful number, since it uses less digits than its factorization.

215354542455253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616463208.

The product of its digits is 72000000, while the sum is 55.

The spelling of 215354542455253 in words is "two hundred fifteen trillion, three hundred fifty-four billion, five hundred forty-two million, four hundred fifty-five thousand, two hundred fifty-three".