2537563 has 6 divisors (see below), whose sum is σ = 2951916. Its totient is φ = 2175012.

The previous prime is 2537551. The next prime is 2537581. The reversal of 2537563 is 3657352.

It is a de Polignac number, because none of the positive numbers 2^k-2537563 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 5⁵ + 3⁴ + 7⁵ + 5⁹ + 6³ + 3¹² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2537503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25845 + ... + 25942.

It is an arithmetic number, because the mean of its divisors is an integer number (491986).

2^2537563 is an apocalyptic number.

2537563 is a deficient number, since it is larger than the sum of its proper divisors (414353).

2537563 is an equidigital number, since it uses as much as digits as its factorization.

2537563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51801 (or 51794 counting only the distinct ones).

The product of its digits is 18900, while the sum is 31.

The square root of 2537563 is about 1592.9730066765. The cubic root of 2537563 is about 136.3972489935.

The spelling of 2537563 in words is "two million, five hundred thirty-seven thousand, five hundred sixty-three".