2563520 has 28 divisors (see below), whose sum is σ = 6105144. Its totient is φ = 1025280.

The previous prime is 2563507. The next prime is 2563523. The reversal of 2563520 is 253652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563523) 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, 3686 + ... + 4325.

2^2563520 is an apocalyptic number.

2563520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2563520 is an abundant number, since it is smaller than the sum of its proper divisors (3541624).

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

2563520 is an equidigital number, since it uses as much as digits as its factorization.

2563520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8028 (or 8018 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2563520 is about 1601.0996221347. The cubic root of 2563520 is about 136.8607461370.

The spelling of 2563520 in words is "two million, five hundred sixty-three thousand, five hundred twenty".