42275377 has 2 divisors, whose sum is σ = 42275378. Its totient is φ = 42275376.

The previous prime is 42275371. The next prime is 42275381. The reversal of 42275377 is 77357224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40908816 + 1366561 = 6396^2 + 1169^2 .

It is a cyclic number.

It is not a de Polignac number, because 42275377 - 2³ = 42275369 is a prime.

It is not a weakly prime, because it can be changed into another prime (42275371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21137688 + 21137689.

It is an arithmetic number, because the mean of its divisors is an integer number (21137689).

Almost surely, 2^42275377 is an apocalyptic number.

It is an amenable number.

42275377 is a deficient number, since it is larger than the sum of its proper divisors (1).

42275377 is an equidigital number, since it uses as much as digits as its factorization.

42275377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82320, while the sum is 37.

The square root of 42275377 is about 6501.9517838877. The cubic root of 42275377 is about 348.3607068273.

It can be divided in two parts, 4227 and 5377, that added together give a square (9604 = 98²).

The spelling of 42275377 in words is "forty-two million, two hundred seventy-five thousand, three hundred seventy-seven".