215297230053 has 4 divisors (see below), whose sum is σ = 287062973408. Its totient is φ = 143531486700.

The previous prime is 215297230033. The next prime is 215297230067. The reversal of 215297230053 is 350032792512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 215297230053 - 2⁶ = 215297229989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215297229993 and 215297230020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215297230033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35882871673 + ... + 35882871678.

It is an arithmetic number, because the mean of its divisors is an integer number (71765743352).

Almost surely, 2^215297230053 is an apocalyptic number.

It is an amenable number.

215297230053 is a deficient number, since it is larger than the sum of its proper divisors (71765743355).

215297230053 is an equidigital number, since it uses as much as digits as its factorization.

215297230053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71765743354.

The product of its (nonzero) digits is 113400, while the sum is 39.

The spelling of 215297230053 in words is "two hundred fifteen billion, two hundred ninety-seven million, two hundred thirty thousand, fifty-three".