2425729 has 2 divisors, whose sum is σ = 2425730. Its totient is φ = 2425728.

The previous prime is 2425723. The next prime is 2425733. The reversal of 2425729 is 9275242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1385329 + 1040400 = 1177^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 2425729 - 2⁵ = 2425697 is a prime.

It is a super-2 number, since 2×2425729² = 11768322362882, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁶ + 4⁴ + 2¹⁸ + 5⁴ + 7 + 2²¹ + 9 .

It is a self number, because there is not a number n which added to its sum of digits gives 2425729.

It is not a weakly prime, because it can be changed into another prime (2425723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1212864 + 1212865.

It is an arithmetic number, because the mean of its divisors is an integer number (1212865).

2^2425729 is an apocalyptic number.

It is an amenable number.

2425729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2425729 is an equidigital number, since it uses as much as digits as its factorization.

2425729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 2425729 is about 1557.4752004446. The cubic root of 2425729 is about 134.3633304451.

The spelling of 2425729 in words is "two million, four hundred twenty-five thousand, seven hundred twenty-nine".