2537729 has 2 divisors, whose sum is σ = 2537730. Its totient is φ = 2537728.

The previous prime is 2537701. The next prime is 2537741. The reversal of 2537729 is 9277352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1567504 + 970225 = 1252^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 2537729 - 2¹⁶ = 2472193 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 5³ + 3¹³ + 7⁶ + 7⁷ + 2¹¹ + 9 .

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2537749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268864 + 1268865.

It is an arithmetic number, because the mean of its divisors is an integer number (1268865).

2^2537729 is an apocalyptic number.

It is an amenable number.

2537729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2537729 is an equidigital number, since it uses as much as digits as its factorization.

2537729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 35.

The square root of 2537729 is about 1593.0251096577. The cubic root of 2537729 is about 136.4002231659.

The spelling of 2537729 in words is "two million, five hundred thirty-seven thousand, seven hundred twenty-nine".