42580553 has 2 divisors, whose sum is σ = 42580554. Its totient is φ = 42580552.

The previous prime is 42580541. The next prime is 42580579. The reversal of 42580553 is 35508524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40921609 + 1658944 = 6397^2 + 1288^2 .

It is a cyclic number.

It is not a de Polignac number, because 42580553 - 2¹⁰ = 42579529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42580513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21290276 + 21290277.

It is an arithmetic number, because the mean of its divisors is an integer number (21290277).

Almost surely, 2^42580553 is an apocalyptic number.

It is an amenable number.

42580553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42580553 is an equidigital number, since it uses as much as digits as its factorization.

42580553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 42580553 is about 6525.3776135945. The cubic root of 42580553 is about 349.1969425075.

The spelling of 42580553 in words is "forty-two million, five hundred eighty thousand, five hundred fifty-three".