2451825 has 36 divisors (see below), whose sum is σ = 4657068. Its totient is φ = 1228800.

The previous prime is 2451811. The next prime is 2451847. The reversal of 2451825 is 5281542.

It is a happy number.

2451825 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 6 ways, for example, as 138384 + 2313441 = 372^2 + 1521^2 .

It is not a de Polignac number, because 2451825 - 2⁴ = 2451809 is a prime.

It is a super-2 number, since 2×2451825² = 12022891661250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 35 ways as a sum of consecutive naturals, for example, 3505 + ... + 4145.

It is an arithmetic number, because the mean of its divisors is an integer number (129363).

2^2451825 is an apocalyptic number.

2451825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2451825 is a deficient number, since it is larger than the sum of its proper divisors (2205243).

2451825 is a wasteful number, since it uses less digits than its factorization.

2451825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 666 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2451825 is about 1565.8304505916. The cubic root of 2451825 is about 134.8434399059.

The spelling of 2451825 in words is "two million, four hundred fifty-one thousand, eight hundred twenty-five".