2662400225 has 12 divisors (see below), whose sum is σ = 3335414124. Its totient is φ = 2107960320.

The previous prime is 2662400219. The next prime is 2662400261. The reversal of 2662400225 is 5220042662.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 253009 + 2662147216 = 503^2 + 51596^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2662400225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546524 + ... + 551373.

It is an arithmetic number, because the mean of its divisors is an integer number (277951177).

Almost surely, 2^2662400225 is an apocalyptic number.

2662400225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2662400225 is a deficient number, since it is larger than the sum of its proper divisors (673013899).

2662400225 is a wasteful number, since it uses less digits than its factorization.

2662400225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098004 (or 1097999 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2662400225 is about 51598.4517694087. The cubic root of 2662400225 is about 1385.9826075887.

Adding to 2662400225 its reverse (5220042662), we get a palindrome (7882442887).

The spelling of 2662400225 in words is "two billion, six hundred sixty-two million, four hundred thousand, two hundred twenty-five".