11825999 has 24 divisors (see below), whose sum is σ = 13825728. Its totient is φ = 10068480.

The previous prime is 11825987. The next prime is 11826007. The reversal of 11825999 is 99952811.

It is a happy number.

It is not a de Polignac number, because 11825999 - 2¹² = 11821903 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11825909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251594 + ... + 251640.

It is an arithmetic number, because the mean of its divisors is an integer number (576072).

Almost surely, 2^11825999 is an apocalyptic number.

11825999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11825999 is a deficient number, since it is larger than the sum of its proper divisors (1999729).

11825999 is a wasteful number, since it uses less digits than its factorization.

11825999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 124 counting only the distinct ones).

The product of its digits is 58320, while the sum is 44.

The square root of 11825999 is about 3438.8950260222. The cubic root of 11825999 is about 227.8308931235.

The spelling of 11825999 in words is "eleven million, eight hundred twenty-five thousand, nine hundred ninety-nine".