11405725 has 24 divisors (see below), whose sum is σ = 15320448. Its totient is φ = 8390400.

The previous prime is 11405699. The next prime is 11405761. The reversal of 11405725 is 52750411.

11405725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11405725 - 2¹¹ = 11403677 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11405725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19690 + ... + 20260.

It is an arithmetic number, because the mean of its divisors is an integer number (638352).

Almost surely, 2^11405725 is an apocalyptic number.

It is an amenable number.

11405725 is a deficient number, since it is larger than the sum of its proper divisors (3914723).

11405725 is a wasteful number, since it uses less digits than its factorization.

11405725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 11405725 is about 3377.2362961451. The cubic root of 11405725 is about 225.0993799668.

The spelling of 11405725 in words is "eleven million, four hundred five thousand, seven hundred twenty-five".