11321625 has 64 divisors (see below), whose sum is σ = 22763520. Its totient is φ = 4881600.

The previous prime is 11321591. The next prime is 11321659. The reversal of 11321625 is 52612311.

It is an interprime number because it is at equal distance from previous prime (11321591) and next prime (11321659).

It is not a de Polignac number, because 11321625 - 2⁶ = 11321561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49762 + ... + 49988.

It is an arithmetic number, because the mean of its divisors is an integer number (355680).

Almost surely, 2^11321625 is an apocalyptic number.

11321625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11321625 is an abundant number, since it is smaller than the sum of its proper divisors (11441895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11321625 is a wasteful number, since it uses less digits than its factorization.

11321625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 261 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 11321625 is about 3364.7622501449. The cubic root of 11321625 is about 224.5447585456.

Adding to 11321625 its reverse (52612311), we get a palindrome (63933936).

The spelling of 11321625 in words is "eleven million, three hundred twenty-one thousand, six hundred twenty-five".