25421073 has 8 divisors (see below), whose sum is σ = 34400928. Its totient is φ = 16694304.

The previous prime is 25421063. The next prime is 25421083. The reversal of 25421073 is 37012452.

It is an interprime number because it is at equal distance from previous prime (25421063) and next prime (25421083).

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

It is not a de Polignac number, because 25421073 - 2¹⁶ = 25355537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25421063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63036 + ... + 63437.

It is an arithmetic number, because the mean of its divisors is an integer number (4300116).

Almost surely, 2^25421073 is an apocalyptic number.

It is an amenable number.

25421073 is a deficient number, since it is larger than the sum of its proper divisors (8979855).

25421073 is a wasteful number, since it uses less digits than its factorization.

25421073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126543.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 25421073 is about 5041.9314751393. The cubic root of 25421073 is about 294.0342757021.

The spelling of 25421073 in words is "twenty-five million, four hundred twenty-one thousand, seventy-three".