11656625 has 8 divisors (see below), whose sum is σ = 14547624. Its totient is φ = 9325200.

The previous prime is 11656583. The next prime is 11656627. The reversal of 11656625 is 52665611.

It can be written as a sum of positive squares in 4 ways, for example, as 35344 + 11621281 = 188^2 + 3409^2 .

It is not a de Polignac number, because 11656625 - 2¹⁴ = 11640241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11656591 and 11656600.

It is not an unprimeable number, because it can be changed into a prime (11656627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46502 + ... + 46751.

It is an arithmetic number, because the mean of its divisors is an integer number (1818453).

Almost surely, 2^11656625 is an apocalyptic number.

It is an amenable number.

11656625 is a deficient number, since it is larger than the sum of its proper divisors (2890999).

11656625 is an frugal number, since it uses more digits than its factorization.

11656625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93268 (or 93258 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 11656625 is about 3414.1799893972. The cubic root of 11656625 is about 226.7379809728.

It can be divided in two parts, 116 and 56625, that multiplied together give a triangular number (6568500 = T₃₆₂₄).

The spelling of 11656625 in words is "eleven million, six hundred fifty-six thousand, six hundred twenty-five".