11725780 has 24 divisors (see below), whose sum is σ = 26863200. Its totient is φ = 4263840.

The previous prime is 11725759. The next prime is 11725807. The reversal of 11725780 is 8752711.

It is a happy number.

It is a super-3 number, since 3×11725780³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26430 + ... + 26869.

It is an arithmetic number, because the mean of its divisors is an integer number (1119300).

Almost surely, 2^11725780 is an apocalyptic number.

11725780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11725780 is an abundant number, since it is smaller than the sum of its proper divisors (15137420).

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

11725780 is a wasteful number, since it uses less digits than its factorization.

11725780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53319 (or 53317 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 11725780 is about 3424.2926276824. The cubic root of 11725780 is about 227.1854849634.

The spelling of 11725780 in words is "eleven million, seven hundred twenty-five thousand, seven hundred eighty".