39550057 has 2 divisors, whose sum is σ = 39550058. Its totient is φ = 39550056.

The previous prime is 39550009. The next prime is 39550097. The reversal of 39550057 is 75005593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28132416 + 11417641 = 5304^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 39550057 - 2¹⁹ = 39025769 is a prime.

It is not a weakly prime, because it can be changed into another prime (39550097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19775028 + 19775029.

It is an arithmetic number, because the mean of its divisors is an integer number (19775029).

Almost surely, 2^39550057 is an apocalyptic number.

It is an amenable number.

39550057 is a deficient number, since it is larger than the sum of its proper divisors (1).

39550057 is an equidigital number, since it uses as much as digits as its factorization.

39550057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23625, while the sum is 34.

The square root of 39550057 is about 6288.8836052196. The cubic root of 39550057 is about 340.7080314600.

The spelling of 39550057 in words is "thirty-nine million, five hundred fifty thousand, fifty-seven".