2525664 has 24 divisors (see below), whose sum is σ = 6630120. Its totient is φ = 841856.

The previous prime is 2525647. The next prime is 2525669. The reversal of 2525664 is 4665252.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×2525664³ = 48333470130239864832, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13059 + ... + 13250.

It is an arithmetic number, because the mean of its divisors is an integer number (276255).

2^2525664 is an apocalyptic number.

2525664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2525664 is an abundant number, since it is smaller than the sum of its proper divisors (4104456).

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

2525664 is a wasteful number, since it uses less digits than its factorization.

2525664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26322 (or 26314 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 2525664 is about 1589.2337776425. The cubic root of 2525664 is about 136.1837194105.

The spelling of 2525664 in words is "two million, five hundred twenty-five thousand, six hundred sixty-four".