2563437136 has 80 divisors (see below), whose sum is σ = 5824627200. Its totient is φ = 1082156544.

The previous prime is 2563437127. The next prime is 2563437143. The reversal of 2563437136 is 6317343652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103425 + ... + 125791.

It is an arithmetic number, because the mean of its divisors is an integer number (72807840).

Almost surely, 2^2563437136 is an apocalyptic number.

2563437136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2563437136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2912313600).

2563437136 is an abundant number, since it is smaller than the sum of its proper divisors (3261190064).

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

2563437136 is a wasteful number, since it uses less digits than its factorization.

2563437136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22436 (or 22430 counting only the distinct ones).

The product of its digits is 272160, while the sum is 40.

The square root of 2563437136 is about 50630.3973517886. The cubic root of 2563437136 is about 1368.5927147834.

The spelling of 2563437136 in words is "two billion, five hundred sixty-three million, four hundred thirty-seven thousand, one hundred thirty-six".