42456553 has 2 divisors, whose sum is σ = 42456554. Its totient is φ = 42456552.

The previous prime is 42456529. The next prime is 42456559. The reversal of 42456553 is 35565424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36638809 + 5817744 = 6053^2 + 2412^2 .

It is a cyclic number.

It is not a de Polignac number, because 42456553 - 2⁹ = 42456041 is a prime.

It is not a weakly prime, because it can be changed into another prime (42456559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21228276 + 21228277.

It is an arithmetic number, because the mean of its divisors is an integer number (21228277).

Almost surely, 2^42456553 is an apocalyptic number.

It is an amenable number.

42456553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42456553 is an equidigital number, since it uses as much as digits as its factorization.

42456553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 34.

The square root of 42456553 is about 6515.8693203593. The cubic root of 42456553 is about 348.8576442593.

The spelling of 42456553 in words is "forty-two million, four hundred fifty-six thousand, five hundred fifty-three".