11725530 has 16 divisors (see below), whose sum is σ = 28141344. Its totient is φ = 3126800.

The previous prime is 11725517. The next prime is 11725537. The reversal of 11725530 is 3552711.

It is a self number, because there is not a number n which added to its sum of digits gives 11725530.

It is not an unprimeable number, because it can be changed into a prime (11725537) 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, 195396 + ... + 195455.

It is an arithmetic number, because the mean of its divisors is an integer number (1758834).

Almost surely, 2^11725530 is an apocalyptic number.

11725530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11725530 is an abundant number, since it is smaller than the sum of its proper divisors (16415814).

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

11725530 is a wasteful number, since it uses less digits than its factorization.

11725530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390861.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 11725530 is about 3424.2561235982. The cubic root of 11725530 is about 227.1838703793.

The spelling of 11725530 in words is "eleven million, seven hundred twenty-five thousand, five hundred thirty".