42331057 has 2 divisors, whose sum is σ = 42331058. Its totient is φ = 42331056.

The previous prime is 42331033. The next prime is 42331087. The reversal of 42331057 is 75013324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34468641 + 7862416 = 5871^2 + 2804^2 .

It is a cyclic number.

It is not a de Polignac number, because 42331057 - 2¹⁹ = 41806769 is a prime.

It is not a weakly prime, because it can be changed into another prime (42331007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21165528 + 21165529.

It is an arithmetic number, because the mean of its divisors is an integer number (21165529).

Almost surely, 2^42331057 is an apocalyptic number.

It is an amenable number.

42331057 is a deficient number, since it is larger than the sum of its proper divisors (1).

42331057 is an equidigital number, since it uses as much as digits as its factorization.

42331057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 42331057 is about 6506.2321661619. The cubic root of 42331057 is about 348.5135792248.

The spelling of 42331057 in words is "forty-two million, three hundred thirty-one thousand, fifty-seven".