25011992 has 16 divisors (see below), whose sum is σ = 47070960. Its totient is φ = 12459744.

The previous prime is 25011991. The next prime is 25011997. The reversal of 25011992 is 29911052.

25011992 is nontrivially palindromic in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25011991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3428 + ... + 7859.

It is an arithmetic number, because the mean of its divisors is an integer number (2941935).

Almost surely, 2^25011992 is an apocalyptic number.

It is an amenable number.

25011992 is a deficient number, since it is larger than the sum of its proper divisors (22058968).

25011992 is a wasteful number, since it uses less digits than its factorization.

25011992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11570 (or 11566 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 25011992 is about 5001.1990562264. The cubic root of 25011992 is about 292.4485194421.

The spelling of 25011992 in words is "twenty-five million, eleven thousand, nine hundred ninety-two".