42758953 has 2 divisors, whose sum is σ = 42758954. Its totient is φ = 42758952.

The previous prime is 42758929. The next prime is 42758959. The reversal of 42758953 is 35985724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28643904 + 14115049 = 5352^2 + 3757^2 .

It is a cyclic number.

It is not a de Polignac number, because 42758953 - 2⁵ = 42758921 is a prime.

It is not a weakly prime, because it can be changed into another prime (42758959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21379476 + 21379477.

It is an arithmetic number, because the mean of its divisors is an integer number (21379477).

Almost surely, 2^42758953 is an apocalyptic number.

It is an amenable number.

42758953 is a deficient number, since it is larger than the sum of its proper divisors (1).

42758953 is an equidigital number, since it uses as much as digits as its factorization.

42758953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 42758953 is about 6539.0330324904. The cubic root of 42758953 is about 349.6839405260.

The spelling of 42758953 in words is "forty-two million, seven hundred fifty-eight thousand, nine hundred fifty-three".