25421043 has 8 divisors (see below), whose sum is σ = 34084800. Its totient is φ = 16852328.

The previous prime is 25421027. The next prime is 25421059. The reversal of 25421043 is 34012452.

It is an interprime number because it is at equal distance from previous prime (25421027) and next prime (25421059).

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

It is a cyclic number.

It is not a de Polignac number, because 25421043 - 2⁴ = 25421027 is a prime.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23133 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (4260600).

Almost surely, 2^25421043 is an apocalyptic number.

25421043 is a deficient number, since it is larger than the sum of its proper divisors (8663757).

25421043 is a wasteful number, since it uses less digits than its factorization.

25421043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47521.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25421043 is about 5041.9285000880. The cubic root of 25421043 is about 294.0341600365.

Adding to 25421043 its reverse (34012452), we get a palindrome (59433495).

The spelling of 25421043 in words is "twenty-five million, four hundred twenty-one thousand, forty-three".