2451225 has 72 divisors (see below), whose sum is σ = 5088960. Its totient is φ = 1034880.

The previous prime is 2451223. The next prime is 2451233. The reversal of 2451225 is 5221542.

It is a happy number.

2451225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2451225 - 2¹ = 2451223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2451221) 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 71 ways as a sum of consecutive naturals, for example, 84511 + ... + 84539.

It is an arithmetic number, because the mean of its divisors is an integer number (70680).

2^2451225 is an apocalyptic number.

2451225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2451225 is an abundant number, since it is smaller than the sum of its proper divisors (2637735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2451225 is a wasteful number, since it uses less digits than its factorization.

2451225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 67 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 2451225 is about 1565.6388472442. The cubic root of 2451225 is about 134.8324395743.

Adding to 2451225 its reverse (5221542), we get a palindrome (7672767).

The spelling of 2451225 in words is "two million, four hundred fifty-one thousand, two hundred twenty-five".