1425218130625 has 75 divisors (see below), whose sum is σ = 1928259202507. Its totient is φ = 1052858144000.

The previous prime is 1425218130607. The next prime is 1425218130641. The reversal of 1425218130625 is 5260318125241.

It is a happy number.

The square root of 1425218130625 is 1193825.

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

It can be written as a sum of positive squares in 37 ways, for example, as 1287446507649 + 137771622976 = 1134657^2 + 371176^2 .

It is not a de Polignac number, because 1425218130625 - 2²¹ = 1425216033473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 26890908099 + ... + 26890908151.

Almost surely, 2^{1425218130625} is an apocalyptic number.

1425218130625 is the 1193825-th square number.

1425218130625 is the 596913-rd centered octagonal number.

It is an amenable number.

1425218130625 is a deficient number, since it is larger than the sum of its proper divisors (503041071882).

1425218130625 is an frugal number, since it uses more digits than its factorization.

1425218130625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 1425218130625 in words is "one trillion, four hundred twenty-five billion, two hundred eighteen million, one hundred thirty thousand, six hundred twenty-five".