42625057 has 2 divisors, whose sum is σ = 42625058. Its totient is φ = 42625056.

The previous prime is 42625043. The next prime is 42625127. The reversal of 42625057 is 75052624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23824161 + 18800896 = 4881^2 + 4336^2 .

It is a cyclic number.

It is not a de Polignac number, because 42625057 - 2¹⁵ = 42592289 is a prime.

It is not a weakly prime, because it can be changed into another prime (42625027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21312528 + 21312529.

It is an arithmetic number, because the mean of its divisors is an integer number (21312529).

Almost surely, 2^42625057 is an apocalyptic number.

It is an amenable number.

42625057 is a deficient number, since it is larger than the sum of its proper divisors (1).

42625057 is an equidigital number, since it uses as much as digits as its factorization.

42625057 is an odious number, because the sum of its binary digits is odd.

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

The square root of 42625057 is about 6528.7867938845. The cubic root of 42625057 is about 349.3185570987.

The spelling of 42625057 in words is "forty-two million, six hundred twenty-five thousand, fifty-seven".