6261655525 has 6 divisors (see below), whose sum is σ = 7764452882. Its totient is φ = 5009324400.

The previous prime is 6261655483. The next prime is 6261655537. The reversal of 6261655525 is 5255561626.

It can be written as a sum of positive squares in 3 ways, for example, as 8958049 + 6252697476 = 2993^2 + 79074^2 .

It is not a de Polignac number, because 6261655525 - 2⁷ = 6261655397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125233086 + ... + 125233135.

Almost surely, 2^6261655525 is an apocalyptic number.

It is an amenable number.

6261655525 is a deficient number, since it is larger than the sum of its proper divisors (1502797357).

6261655525 is a wasteful number, since it uses less digits than its factorization.

6261655525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250466231 (or 250466226 counting only the distinct ones).

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

The square root of 6261655525 is about 79130.6231809152. The cubic root of 6261655525 is about 1843.1600868287.

The spelling of 6261655525 in words is "six billion, two hundred sixty-one million, six hundred fifty-five thousand, five hundred twenty-five".