2525656516 has 12 divisors (see below), whose sum is σ = 4572309420. Its totient is φ = 1219282400.

The previous prime is 2525656501. The next prime is 2525656547. The reversal of 2525656516 is 6156565252.

It can be written as a sum of positive squares in 2 ways, for example, as 1658118400 + 867538116 = 40720^2 + 29454^2 .

It is a super-3 number, since 3×2525656516³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10886335 + ... + 10886566.

It is an arithmetic number, because the mean of its divisors is an integer number (381025785).

Almost surely, 2^2525656516 is an apocalyptic number.

It is an amenable number.

2525656516 is a deficient number, since it is larger than the sum of its proper divisors (2046652904).

2525656516 is a wasteful number, since it uses less digits than its factorization.

2525656516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21772934 (or 21772932 counting only the distinct ones).

The product of its digits is 540000, while the sum is 43.

The square root of 2525656516 is about 50255.9102593914. The cubic root of 2525656516 is about 1361.8358489798.

It can be divided in two parts, 252565 and 6516, that added together give a square (259081 = 509²).

The spelling of 2525656516 in words is "two billion, five hundred twenty-five million, six hundred fifty-six thousand, five hundred sixteen".