2490625 has 12 divisors (see below), whose sum is σ = 3116988. Its totient is φ = 1990000.

The previous prime is 2490623. The next prime is 2490637. The reversal of 2490625 is 5260942.

It can be written as a sum of positive squares in 6 ways, for example, as 2070721 + 419904 = 1439^2 + 648^2 .

It is not a de Polignac number, because 2490625 - 2¹ = 2490623 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2490593 and 2490602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2727 + ... + 3523.

It is an arithmetic number, because the mean of its divisors is an integer number (259749).

2^2490625 is an apocalyptic number.

2490625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2490625 is a deficient number, since it is larger than the sum of its proper divisors (626363).

2490625 is an frugal number, since it uses more digits than its factorization.

2490625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2490625 is about 1578.1714102087. The cubic root of 2490625 is about 135.5510172219.

The spelling of 2490625 in words is "two million, four hundred ninety thousand, six hundred twenty-five".