11651425 has 12 divisors (see below), whose sum is σ = 14503660. Its totient is φ = 9285120.

The previous prime is 11651407. The next prime is 11651449. The reversal of 11651425 is 52415611.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4231249 + 7420176 = 2057^2 + 2724^2 .

It is not a de Polignac number, because 11651425 - 2⁹ = 11650913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 11651425.

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 11 ways as a sum of consecutive naturals, for example, 7081 + ... + 8569.

Almost surely, 2^11651425 is an apocalyptic number.

It is an amenable number.

11651425 is a deficient number, since it is larger than the sum of its proper divisors (2852235).

11651425 is a wasteful number, since it uses less digits than its factorization.

11651425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1807 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 11651425 is about 3413.4183745917. The cubic root of 11651425 is about 226.7042601526.

The spelling of 11651425 in words is "eleven million, six hundred fifty-one thousand, four hundred twenty-five".