42534553 has 2 divisors, whose sum is σ = 42534554. Its totient is φ = 42534552.

The previous prime is 42534529. The next prime is 42534581. The reversal of 42534553 is 35543524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23068809 + 19465744 = 4803^2 + 4412^2 .

It is a cyclic number.

It is not a de Polignac number, because 42534553 - 2¹³ = 42526361 is a prime.

It is not a weakly prime, because it can be changed into another prime (42514553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21267276 + 21267277.

It is an arithmetic number, because the mean of its divisors is an integer number (21267277).

Almost surely, 2^42534553 is an apocalyptic number.

It is an amenable number.

42534553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42534553 is an equidigital number, since it uses as much as digits as its factorization.

42534553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 31.

The square root of 42534553 is about 6521.8519609080. The cubic root of 42534553 is about 349.0711507549.

The spelling of 42534553 in words is "forty-two million, five hundred thirty-four thousand, five hundred fifty-three".