25421454 has 48 divisors (see below), whose sum is σ = 56908800. Its totient is φ = 8197200.

The previous prime is 25421453. The next prime is 25421483. The reversal of 25421454 is 45412452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25421453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127647 + ... + 127845.

It is an arithmetic number, because the mean of its divisors is an integer number (1185600).

Almost surely, 2^25421454 is an apocalyptic number.

25421454 is an abundant number, since it is smaller than the sum of its proper divisors (31487346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25421454 is a wasteful number, since it uses less digits than its factorization.

25421454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 402 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 25421454 is about 5041.9692581371. The cubic root of 25421454 is about 294.0357446474.

The spelling of 25421454 in words is "twenty-five million, four hundred twenty-one thousand, four hundred fifty-four".