5255665525 has 48 divisors (see below), whose sum is σ = 7511394240. Its totient is φ = 3607718400.

The previous prime is 5255665501. The next prime is 5255665529.

It is a happy number.

5255665525 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5255665525 - 2²¹ = 5253568373 is a prime.

It is a super-2 number, since 2×5255665525² = 55244040221347051250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5255665529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1529209 + ... + 1532641.

It is an arithmetic number, because the mean of its divisors is an integer number (156487380).

Almost surely, 2^5255665525 is an apocalyptic number.

5255665525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5255665525 is a deficient number, since it is larger than the sum of its proper divisors (2255728715).

5255665525 is a wasteful number, since it uses less digits than its factorization.

5255665525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3761 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 46.

The square root of 5255665525 is about 72495.9690258707. The cubic root of 5255665525 is about 1738.6382886664.

The spelling of 5255665525 in words is "five billion, two hundred fifty-five million, six hundred sixty-five thousand, five hundred twenty-five".