25994516 has 6 divisors (see below), whose sum is σ = 45490410. Its totient is φ = 12997256.

The previous prime is 25994483. The next prime is 25994543. The reversal of 25994516 is 61549952.

It can be written as a sum of positive squares in only one way, i.e., 23001616 + 2992900 = 4796^2 + 1730^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249311 + ... + 3249318.

It is an arithmetic number, because the mean of its divisors is an integer number (7581735).

Almost surely, 2^25994516 is an apocalyptic number.

It is an amenable number.

25994516 is a deficient number, since it is larger than the sum of its proper divisors (19495894).

25994516 is a wasteful number, since it uses less digits than its factorization.

25994516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498633 (or 6498631 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The square root of 25994516 is about 5098.4817347913. The cubic root of 25994516 is about 296.2287767499.

The spelling of 25994516 in words is "twenty-five million, nine hundred ninety-four thousand, five hundred sixteen".