25004493 has 6 divisors (see below), whose sum is σ = 36117614. Its totient is φ = 16669656.

The previous prime is 25004459. The next prime is 25004521. The reversal of 25004493 is 39440052.

It can be written as a sum of positive squares in only one way, i.e., 15896169 + 9108324 = 3987^2 + 3018^2 .

It is not a de Polignac number, because 25004493 - 2⁶ = 25004429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25004593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1389130 + ... + 1389147.

Almost surely, 2^25004493 is an apocalyptic number.

It is an amenable number.

25004493 is a deficient number, since it is larger than the sum of its proper divisors (11113121).

25004493 is a wasteful number, since it uses less digits than its factorization.

25004493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778283 (or 2778280 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 25004493 is about 5000.4492798148. The cubic root of 25004493 is about 292.4192895876.

The spelling of 25004493 in words is "twenty-five million, four thousand, four hundred ninety-three".