42025757 has 2 divisors, whose sum is σ = 42025758. Its totient is φ = 42025756.

The previous prime is 42025729. The next prime is 42025793. The reversal of 42025757 is 75752024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22080601 + 19945156 = 4699^2 + 4466^2 .

It is a cyclic number.

It is not a de Polignac number, because 42025757 - 2¹⁰ = 42024733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42025657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21012878 + 21012879.

It is an arithmetic number, because the mean of its divisors is an integer number (21012879).

Almost surely, 2^42025757 is an apocalyptic number.

It is an amenable number.

42025757 is a deficient number, since it is larger than the sum of its proper divisors (1).

42025757 is an equidigital number, since it uses as much as digits as its factorization.

42025757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 42025757 is about 6482.7275895259. The cubic root of 42025757 is about 347.6737071254.

The spelling of 42025757 in words is "forty-two million, twenty-five thousand, seven hundred fifty-seven".