61025885588 has 12 divisors (see below), whose sum is σ = 106834683060. Its totient is φ = 30501690432.

The previous prime is 61025885551. The next prime is 61025885597. The reversal of 61025885588 is 88558852016.

It can be written as a sum of positive squares in 2 ways, for example, as 31859394064 + 29166491524 = 178492^2 + 170782^2 .

It is a super-2 number, since 2×61025885588² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2800883 + ... + 2822586.

It is an arithmetic number, because the mean of its divisors is an integer number (8902890255).

Almost surely, 2^61025885588 is an apocalyptic number.

It is an amenable number.

61025885588 is a deficient number, since it is larger than the sum of its proper divisors (45808797472).

61025885588 is a wasteful number, since it uses less digits than its factorization.

61025885588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626186 (or 5626184 counting only the distinct ones).

The product of its (nonzero) digits is 6144000, while the sum is 56.

The spelling of 61025885588 in words is "sixty-one billion, twenty-five million, eight hundred eighty-five thousand, five hundred eighty-eight".