42265777 has 2 divisors, whose sum is σ = 42265778. Its totient is φ = 42265776.

The previous prime is 42265763. The next prime is 42265829. The reversal of 42265777 is 77756224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 998001 = 6424^2 + 999^2 .

It is a cyclic number.

It is not a de Polignac number, because 42265777 - 2¹¹ = 42263729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42262777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21132888 + 21132889.

It is an arithmetic number, because the mean of its divisors is an integer number (21132889).

Almost surely, 2^42265777 is an apocalyptic number.

It is an amenable number.

42265777 is a deficient number, since it is larger than the sum of its proper divisors (1).

42265777 is an equidigital number, since it uses as much as digits as its factorization.

42265777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164640, while the sum is 40.

The square root of 42265777 is about 6501.2135021087. The cubic root of 42265777 is about 348.3343359530.

The spelling of 42265777 in words is "forty-two million, two hundred sixty-five thousand, seven hundred seventy-seven".