39072501257 has 2 divisors, whose sum is σ = 39072501258. Its totient is φ = 39072501256.

The previous prime is 39072501199. The next prime is 39072501283. The reversal of 39072501257 is 75210527093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23542606096 + 15529895161 = 153436^2 + 124619^2 .

It is a cyclic number.

It is not a de Polignac number, because 39072501257 - 2¹⁴ = 39072484873 is a prime.

It is not a weakly prime, because it can be changed into another prime (39072509257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19536250628 + 19536250629.

It is an arithmetic number, because the mean of its divisors is an integer number (19536250629).

Almost surely, 2^39072501257 is an apocalyptic number.

It is an amenable number.

39072501257 is a deficient number, since it is larger than the sum of its proper divisors (1).

39072501257 is an equidigital number, since it uses as much as digits as its factorization.

39072501257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 41.

The spelling of 39072501257 in words is "thirty-nine billion, seventy-two million, five hundred one thousand, two hundred fifty-seven".