2529749 has 2 divisors, whose sum is σ = 2529750. Its totient is φ = 2529748.

The previous prime is 2529721. The next prime is 2529767. The reversal of 2529749 is 9479252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1918225 + 611524 = 1385^2 + 782^2 .

It is a cyclic number.

It is not a de Polignac number, because 2529749 - 2¹⁶ = 2464213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2529799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264874 + 1264875.

It is an arithmetic number, because the mean of its divisors is an integer number (1264875).

2^2529749 is an apocalyptic number.

It is an amenable number.

2529749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2529749 is an equidigital number, since it uses as much as digits as its factorization.

2529749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 2529749 is about 1590.5184689277. The cubic root of 2529749 is about 136.2571008840.

It can be divided in two parts, 252 and 9749, that added together give a palindrome (10001).

The spelling of 2529749 in words is "two million, five hundred twenty-nine thousand, seven hundred forty-nine".