194548238283025 has 27 divisors (see below), whose sum is σ = 265165470870769. Its totient is φ = 141489069920000.

The previous prime is 194548238282977. The next prime is 194548238283037. The reversal of 194548238283025 is 520382832845491.

It is a happy number.

The square root of 194548238283025 is 13948055.

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 102464945515009 + 92083292768016 = 10122497^2 + 9596004^2 .

It is a de Polignac number, because none of the positive numbers 2^k-194548238283025 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, 767016225 + ... + 767269825.

Almost surely, 2^{194548238283025} is an apocalyptic number.

194548238283025 is the 13948055-th square number.

194548238283025 is the 6974028-th centered octagonal number.

It is an amenable number.

194548238283025 is a deficient number, since it is larger than the sum of its proper divisors (70617232587744).

194548238283025 is an frugal number, since it uses more digits than its factorization.

194548238283025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507234 (or 253617 counting only the distinct ones).

The product of its (nonzero) digits is 132710400, while the sum is 64.

The spelling of 194548238283025 in words is "one hundred ninety-four trillion, five hundred forty-eight billion, two hundred thirty-eight million, two hundred eighty-three thousand, twenty-five".