52455121 has 2 divisors, whose sum is σ = 52455122. Its totient is φ = 52455120.

The previous prime is 52455103. The next prime is 52455133. The reversal of 52455121 is 12155425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 12702096 = 6305^2 + 3564^2 .

It is a cyclic number.

It is not a de Polignac number, because 52455121 - 2⁵ = 52455089 is a prime.

It is not a weakly prime, because it can be changed into another prime (52455521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26227560 + 26227561.

It is an arithmetic number, because the mean of its divisors is an integer number (26227561).

Almost surely, 2^52455121 is an apocalyptic number.

It is an amenable number.

52455121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52455121 is an equidigital number, since it uses as much as digits as its factorization.

52455121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000, while the sum is 25.

The square root of 52455121 is about 7242.5907657412. The cubic root of 52455121 is about 374.3368927204.

The spelling of 52455121 in words is "fifty-two million, four hundred fifty-five thousand, one hundred twenty-one".