20253224215 has 16 divisors (see below), whose sum is σ = 27987886080. Its totient is φ = 13781907360.

The previous prime is 20253224143. The next prime is 20253224221. The reversal of 20253224215 is 51242235202.

It is not a de Polignac number, because 20253224215 - 2⁹ = 20253223703 is a prime.

It is a super-2 number, since 2×20253224215² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2204055 + ... + 2213224.

It is an arithmetic number, because the mean of its divisors is an integer number (1749242880).

Almost surely, 2^20253224215 is an apocalyptic number.

20253224215 is a deficient number, since it is larger than the sum of its proper divisors (7734661865).

20253224215 is a wasteful number, since it uses less digits than its factorization.

20253224215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417422.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 20253224215 its reverse (51242235202), we get a palindrome (71495459417).

The spelling of 20253224215 in words is "twenty billion, two hundred fifty-three million, two hundred twenty-four thousand, two hundred fifteen".