25421061 has 8 divisors (see below), whose sum is σ = 34043680. Its totient is φ = 16872912.

The previous prime is 25421059. The next prime is 25421063. The reversal of 25421061 is 16012452.

It is an interprime number because it is at equal distance from previous prime (25421059) and next prime (25421063).

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

It is not a de Polignac number, because 25421061 - 2¹ = 25421059 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 (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, 17815 + ... + 19188.

It is an arithmetic number, because the mean of its divisors is an integer number (4255460).

Almost surely, 2^25421061 is an apocalyptic number.

It is an amenable number.

25421061 is a deficient number, since it is larger than the sum of its proper divisors (8622619).

25421061 is a wasteful number, since it uses less digits than its factorization.

25421061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37235.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25421061 is about 5041.9302851190. The cubic root of 25421061 is about 294.0342294359.

The spelling of 25421061 in words is "twenty-five million, four hundred twenty-one thousand, sixty-one".