2563016525 has 12 divisors (see below), whose sum is σ = 3179752212. Its totient is φ = 2049373440.

The previous prime is 2563016503. The next prime is 2563016527. The reversal of 2563016525 is 5256103652.

It can be written as a sum of positive squares in 6 ways, for example, as 205234276 + 2357782249 = 14326^2 + 48557^2 .

It is not a de Polignac number, because 2563016525 - 2⁶ = 2563016461 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563016527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26357 + ... + 76293.

It is an arithmetic number, because the mean of its divisors is an integer number (264979351).

Almost surely, 2^2563016525 is an apocalyptic number.

2563016525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2563016525 is a deficient number, since it is larger than the sum of its proper divisors (616735687).

2563016525 is a wasteful number, since it uses less digits than its factorization.

2563016525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52000 (or 51995 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 2563016525 is about 50626.2434415195. The cubic root of 2563016525 is about 1368.5178573937.

The spelling of 2563016525 in words is "two billion, five hundred sixty-three million, sixteen thousand, five hundred twenty-five".