2545320 has 32 divisors (see below), whose sum is σ = 7636320. Its totient is φ = 678720.

The previous prime is 2545313. The next prime is 2545327. The reversal of 2545320 is 235452.

2545320 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 (2545313) and next prime (2545327).

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2545327) 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 7 ways as a sum of consecutive naturals, for example, 10486 + ... + 10725.

It is an arithmetic number, because the mean of its divisors is an integer number (238635).

2^2545320 is an apocalyptic number.

2545320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545320 is an abundant number, since it is smaller than the sum of its proper divisors (5091000).

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

2545320 is a wasteful number, since it uses less digits than its factorization.

2545320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21225 (or 21221 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2545320 is about 1595.4059044644. The cubic root of 2545320 is about 136.5360904985.

The spelling of 2545320 in words is "two million, five hundred forty-five thousand, three hundred twenty".