42211577 has 2 divisors, whose sum is σ = 42211578. Its totient is φ = 42211576.

The previous prime is 42211571. The next prime is 42211583. The reversal of 42211577 is 77511224.

It is a balanced prime because it is at equal distance from previous prime (42211571) and next prime (42211583).

It can be written as a sum of positive squares in only one way, i.e., 41203561 + 1008016 = 6419^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 42211577 - 2⁸ = 42211321 is a prime.

It is not a weakly prime, because it can be changed into another prime (42211571) 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, 21105788 + 21105789.

It is an arithmetic number, because the mean of its divisors is an integer number (21105789).

Almost surely, 2^42211577 is an apocalyptic number.

It is an amenable number.

42211577 is a deficient number, since it is larger than the sum of its proper divisors (1).

42211577 is an equidigital number, since it uses as much as digits as its factorization.

42211577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 29.

The square root of 42211577 is about 6497.0437123356. The cubic root of 42211577 is about 348.1853754282.

The spelling of 42211577 in words is "forty-two million, two hundred eleven thousand, five hundred seventy-seven".