2563900 has 18 divisors (see below), whose sum is σ = 5563880. Its totient is φ = 1025520.

The previous prime is 2563877. The next prime is 2563901. The reversal of 2563900 is 93652.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12720 + ... + 12919.

2^2563900 is an apocalyptic number.

2563900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2563900 is an abundant number, since it is smaller than the sum of its proper divisors (2999980).

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

2563900 is a wasteful number, since it uses less digits than its factorization.

2563900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25653 (or 25646 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2563900 is about 1601.2182861809. The cubic root of 2563900 is about 136.8675082602.

The spelling of 2563900 in words is "two million, five hundred sixty-three thousand, nine hundred".