11100725 has 6 divisors (see below), whose sum is σ = 13764930. Its totient is φ = 8880560.

The previous prime is 11100667. The next prime is 11100737. The reversal of 11100725 is 52700111.

It can be written as a sum of positive squares in 3 ways, for example, as 1203409 + 9897316 = 1097^2 + 3146^2 .

It is not a de Polignac number, because 11100725 - 2⁸ = 11100469 is a prime.

It is a Curzon number.

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, 221990 + ... + 222039.

It is an arithmetic number, because the mean of its divisors is an integer number (2294155).

Almost surely, 2^11100725 is an apocalyptic number.

It is an amenable number.

11100725 is a deficient number, since it is larger than the sum of its proper divisors (2664205).

11100725 is an equidigital number, since it uses as much as digits as its factorization.

11100725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444039 (or 444034 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 11100725 is about 3331.7750524308. The cubic root of 11100725 is about 223.0747669690.

Adding to 11100725 its reverse (52700111), we get a palindrome (63800836).

The spelling of 11100725 in words is "eleven million, one hundred thousand, seven hundred twenty-five".