42510553 has 2 divisors, whose sum is σ = 42510554. Its totient is φ = 42510552.

The previous prime is 42510547. The next prime is 42510569. The reversal of 42510553 is 35501524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36517849 + 5992704 = 6043^2 + 2448^2 .

It is a cyclic number.

It is not a de Polignac number, because 42510553 - 2²⁵ = 8956121 is a prime.

It is not a weakly prime, because it can be changed into another prime (42510593) 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, 21255276 + 21255277.

It is an arithmetic number, because the mean of its divisors is an integer number (21255277).

Almost surely, 2^42510553 is an apocalyptic number.

It is an amenable number.

42510553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42510553 is an equidigital number, since it uses as much as digits as its factorization.

42510553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 42510553 is about 6520.0117331183. The cubic root of 42510553 is about 349.0054842694.

The spelling of 42510553 in words is "forty-two million, five hundred ten thousand, five hundred fifty-three".