42042053 has 2 divisors, whose sum is σ = 42042054. Its totient is φ = 42042052.

The previous prime is 42042023. The next prime is 42042059. The reversal of 42042053 is 35024024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34550884 + 7491169 = 5878^2 + 2737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42042053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42042059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021026 + 21021027.

It is an arithmetic number, because the mean of its divisors is an integer number (21021027).

Almost surely, 2^42042053 is an apocalyptic number.

It is an amenable number.

42042053 is a deficient number, since it is larger than the sum of its proper divisors (1).

42042053 is an equidigital number, since it uses as much as digits as its factorization.

42042053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42042053 is about 6483.9843460638. The cubic root of 42042053 is about 347.7186395588.

Adding to 42042053 its reverse (35024024), we get a palindrome (77066077).

The spelling of 42042053 in words is "forty-two million, forty-two thousand, fifty-three".