2563525 has 18 divisors (see below), whose sum is σ = 3311606. Its totient is φ = 1968000.

The previous prime is 2563523. The next prime is 2563543. The reversal of 2563525 is 5253652.

It can be written as a sum of positive squares in 9 ways, for example, as 2490084 + 73441 = 1578^2 + 271^2 .

It is not a de Polignac number, because 2563525 - 2¹ = 2563523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2563493 and 2563502.

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 17 ways as a sum of consecutive naturals, for example, 41995 + ... + 42055.

2^2563525 is an apocalyptic number.

2563525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2563525 is a deficient number, since it is larger than the sum of its proper divisors (748081).

2563525 is an equidigital number, since it uses as much as digits as its factorization.

2563525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 107 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 2563525 is about 1601.1011835609. The cubic root of 2563525 is about 136.8608351167.

The spelling of 2563525 in words is "two million, five hundred sixty-three thousand, five hundred twenty-five".