25947764 has 6 divisors (see below), whose sum is σ = 45408594. Its totient is φ = 12973880.

The previous prime is 25947743. The next prime is 25947773. The reversal of 25947764 is 46774952.

It can be written as a sum of positive squares in only one way, i.e., 16337764 + 9610000 = 4042^2 + 3100^2 .

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, 3243467 + ... + 3243474.

It is an arithmetic number, because the mean of its divisors is an integer number (7568099).

Almost surely, 2^25947764 is an apocalyptic number.

It is an amenable number.

25947764 is a deficient number, since it is larger than the sum of its proper divisors (19460830).

25947764 is a wasteful number, since it uses less digits than its factorization.

25947764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6486945 (or 6486943 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The square root of 25947764 is about 5093.8947770836. The cubic root of 25947764 is about 296.0510777451.

The spelling of 25947764 in words is "twenty-five million, nine hundred forty-seven thousand, seven hundred sixty-four".