11291725 has 6 divisors (see below), whose sum is σ = 14001770. Its totient is φ = 9033360.

The previous prime is 11291669. The next prime is 11291741. The reversal of 11291725 is 52719211.

It can be written as a sum of positive squares in 3 ways, for example, as 2399401 + 8892324 = 1549^2 + 2982^2 .

It is not a de Polignac number, because 11291725 - 2¹⁹ = 10767437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11291693 and 11291702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225810 + ... + 225859.

Almost surely, 2^11291725 is an apocalyptic number.

It is an amenable number.

11291725 is a deficient number, since it is larger than the sum of its proper divisors (2710045).

11291725 is an equidigital number, since it uses as much as digits as its factorization.

11291725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451679 (or 451674 counting only the distinct ones).

The product of its digits is 1260, while the sum is 28.

The square root of 11291725 is about 3360.3162053593. The cubic root of 11291725 is about 224.3469127610.

The spelling of 11291725 in words is "eleven million, two hundred ninety-one thousand, seven hundred twenty-five".