21552296153 has 2 divisors, whose sum is σ = 21552296154. Its totient is φ = 21552296152.

The previous prime is 21552296081. The next prime is 21552296197. The reversal of 21552296153 is 35169225512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15369304729 + 6182991424 = 123973^2 + 78632^2 .

It is a cyclic number.

It is not a de Polignac number, because 21552296153 - 2¹² = 21552292057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21552296153.

It is not a weakly prime, because it can be changed into another prime (21552296053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10776148076 + 10776148077.

It is an arithmetic number, because the mean of its divisors is an integer number (10776148077).

Almost surely, 2^21552296153 is an apocalyptic number.

It is an amenable number.

21552296153 is a deficient number, since it is larger than the sum of its proper divisors (1).

21552296153 is an equidigital number, since it uses as much as digits as its factorization.

21552296153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 41.

The spelling of 21552296153 in words is "twenty-one billion, five hundred fifty-two million, two hundred ninety-six thousand, one hundred fifty-three".