25920478 has 8 divisors (see below), whose sum is σ = 41167872. Its totient is φ = 12197856.

The previous prime is 25920473. The next prime is 25920523. The reversal of 25920478 is 87402952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25920473) 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, 381150 + ... + 381217.

It is an arithmetic number, because the mean of its divisors is an integer number (5145984).

Almost surely, 2^25920478 is an apocalyptic number.

25920478 is a deficient number, since it is larger than the sum of its proper divisors (15247394).

25920478 is a wasteful number, since it uses less digits than its factorization.

25920478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762386.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 25920478 is about 5091.2157683602. The cubic root of 25920478 is about 295.9472681205.

The spelling of 25920478 in words is "twenty-five million, nine hundred twenty thousand, four hundred seventy-eight".