455721053 has 2 divisors, whose sum is σ = 455721054. Its totient is φ = 455721052.

The previous prime is 455721041. The next prime is 455721113. The reversal of 455721053 is 350127554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331130809 + 124590244 = 18197^2 + 11162^2 .

It is a cyclic number.

It is not a de Polignac number, because 455721053 - 2¹⁰ = 455720029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455721653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227860526 + 227860527.

It is an arithmetic number, because the mean of its divisors is an integer number (227860527).

Almost surely, 2^455721053 is an apocalyptic number.

It is an amenable number.

455721053 is a deficient number, since it is larger than the sum of its proper divisors (1).

455721053 is an equidigital number, since it uses as much as digits as its factorization.

455721053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 455721053 is about 21347.6240598339. The cubic root of 455721053 is about 769.5432457260.

The spelling of 455721053 in words is "four hundred fifty-five million, seven hundred twenty-one thousand, fifty-three".