2455749 has 18 divisors (see below), whose sum is σ = 3707730. Its totient is φ = 1564416.

The previous prime is 2455741. The next prime is 2455763. The reversal of 2455749 is 9475542.

2455749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 294849 + 2160900 = 543^2 + 1470^2 .

It is not a de Polignac number, because 2455749 - 2³ = 2455741 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25269 + ... + 25365.

It is an arithmetic number, because the mean of its divisors is an integer number (205985).

2^2455749 is an apocalyptic number.

2455749 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2455749 is a deficient number, since it is larger than the sum of its proper divisors (1251981).

2455749 is an equidigital number, since it uses as much as digits as its factorization.

2455749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 129 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 2455749 is about 1567.0829588761. The cubic root of 2455749 is about 134.9153378637.

The spelling of 2455749 in words is "two million, four hundred fifty-five thousand, seven hundred forty-nine".