1155210625 has 10 divisors (see below), whose sum is σ = 1443551978. Its totient is φ = 924168000.

The previous prime is 1155210533. The next prime is 1155210649. The reversal of 1155210625 is 5260125511.

It can be written as a sum of positive squares in 5 ways, for example, as 754930576 + 400280049 = 27476^2 + 20007^2 .

It is not a de Polignac number, because 1155210625 - 2¹⁷ = 1155079553 is a prime.

It is a super-2 number, since 2×1155210625² = 2669023176225781250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155210593 and 1155210602.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 923544 + ... + 924793.

Almost surely, 2^1155210625 is an apocalyptic number.

It is an amenable number.

1155210625 is a deficient number, since it is larger than the sum of its proper divisors (288341353).

1155210625 is an frugal number, since it uses more digits than its factorization.

1155210625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848357 (or 1848342 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1155210625 is about 33988.3895617312. The cubic root of 1155210625 is about 1049.2695221637.

The spelling of 1155210625 in words is "one billion, one hundred fifty-five million, two hundred ten thousand, six hundred twenty-five".