42052657 has 2 divisors, whose sum is σ = 42052658. Its totient is φ = 42052656.

The previous prime is 42052651. The next prime is 42052687. The reversal of 42052657 is 75625024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41783296 + 269361 = 6464^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 42052657 - 2¹⁵ = 42019889 is a prime.

It is not a weakly prime, because it can be changed into another prime (42052651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21026328 + 21026329.

It is an arithmetic number, because the mean of its divisors is an integer number (21026329).

Almost surely, 2^42052657 is an apocalyptic number.

It is an amenable number.

42052657 is a deficient number, since it is larger than the sum of its proper divisors (1).

42052657 is an equidigital number, since it uses as much as digits as its factorization.

42052657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 42052657 is about 6484.8020016034. The cubic root of 42052657 is about 347.7478713892.

The spelling of 42052657 in words is "forty-two million, fifty-two thousand, six hundred fifty-seven".