42755269 has 2 divisors, whose sum is σ = 42755270. Its totient is φ = 42755268.

The previous prime is 42755257. The next prime is 42755303. The reversal of 42755269 is 96255724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34082244 + 8673025 = 5838^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 42755269 - 2⁹ = 42754757 is a prime.

It is a super-2 number, since 2×42755269² = 3656026054524722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42755249) 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, 21377634 + 21377635.

It is an arithmetic number, because the mean of its divisors is an integer number (21377635).

Almost surely, 2^42755269 is an apocalyptic number.

It is an amenable number.

42755269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42755269 is an equidigital number, since it uses as much as digits as its factorization.

42755269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 42755269 is about 6538.7513333969. The cubic root of 42755269 is about 349.6738976184.

It can be divided in two parts, 427 and 55269, that added together give a square (55696 = 236²).

The spelling of 42755269 in words is "forty-two million, seven hundred fifty-five thousand, two hundred sixty-nine".