196289725 has 12 divisors (see below), whose sum is σ = 243974836. Its totient is φ = 156660480.

The previous prime is 196289693. The next prime is 196289747. The reversal of 196289725 is 527982691.

It can be written as a sum of positive squares in 6 ways, for example, as 30935844 + 165353881 = 5562^2 + 12859^2 .

It is not a de Polignac number, because 196289725 - 2⁵ = 196289693 is a prime.

It is a super-2 number, since 2×196289725² = 77059312281151250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1759 + ... + 19891.

Almost surely, 2^196289725 is an apocalyptic number.

It is an amenable number.

196289725 is a deficient number, since it is larger than the sum of its proper divisors (47685111).

196289725 is a wasteful number, since it uses less digits than its factorization.

196289725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18576 (or 18571 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 196289725 is about 14010.3435004285. The cubic root of 196289725 is about 581.1646485073.

The spelling of 196289725 in words is "one hundred ninety-six million, two hundred eighty-nine thousand, seven hundred twenty-five".