61060881025 has 27 divisors (see below), whose sum is σ = 76880459451. Its totient is φ = 48108378240.

The previous prime is 61060881017. The next prime is 61060881041. The reversal of 61060881025 is 52018806016.

The square root of 61060881025 is 247105.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 1380345409 + 59680535616 = 37153^2 + 244296^2 .

It is not a de Polignac number, because 61060881025 - 2³ = 61060881017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 90192987 + ... + 90193663.

Almost surely, 2^61060881025 is an apocalyptic number.

61060881025 is the 247105-th square number.

61060881025 is the 123553-rd centered octagonal number.

It is an amenable number.

61060881025 is a deficient number, since it is larger than the sum of its proper divisors (15819578426).

61060881025 is an frugal number, since it uses more digits than its factorization.

61060881025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 61060881025 in words is "sixty-one billion, sixty million, eight hundred eighty-one thousand, twenty-five".