61303284025 has 27 divisors (see below), whose sum is σ = 79501742509. Its totient is φ = 46888550720.

The previous prime is 61303284019. The next prime is 61303284047. The reversal of 61303284025 is 52048230316.

The square root of 61303284025 is 247595.

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

It can be written as a sum of positive squares in 4 ways, for example, as 22577767081 + 38725516944 = 150259^2 + 196788^2 .

It is not a de Polignac number, because 61303284025 - 2⁹ = 61303283513 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, 28472349 + ... + 28474501.

Almost surely, 2^61303284025 is an apocalyptic number.

61303284025 is the 247595-th square number.

61303284025 is the 123798-th centered octagonal number.

It is an amenable number.

61303284025 is a deficient number, since it is larger than the sum of its proper divisors (18198458484).

61303284025 is an frugal number, since it uses more digits than its factorization.

61303284025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 61303284025 in words is "sixty-one billion, three hundred three million, two hundred eighty-four thousand, twenty-five".