2400025 has 6 divisors (see below), whose sum is σ = 2976062. Its totient is φ = 1920000.

The previous prime is 2400019. The next prime is 2400031. The reversal of 2400025 is 5200042.

It is a happy number.

2400025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2400019) and next prime (2400031).

It can be written as a sum of positive squares in 3 ways, for example, as 3721 + 2396304 = 61^2 + 1548^2 .

It is not a de Polignac number, because 2400025 - 2⁵ = 2399993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2399978 and 2400014.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 47976 + ... + 48025.

2^2400025 is an apocalyptic number.

2400025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2400025 is a deficient number, since it is larger than the sum of its proper divisors (576037).

2400025 is an equidigital number, since it uses as much as digits as its factorization.

2400025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96011 (or 96006 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2400025 is about 1549.2014071773. The cubic root of 2400025 is about 133.8870548988.

Adding to 2400025 its reverse (5200042), we get a palindrome (7600067).

It can be divided in two parts, 24000 and 25, that added together give a square (24025 = 155²).

The spelling of 2400025 in words is "two million, four hundred thousand, twenty-five".