25421054 has 16 divisors (see below), whose sum is σ = 39536640. Its totient is φ = 12245880.

The previous prime is 25421027. The next prime is 25421059. The reversal of 25421054 is 45012452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25421059) 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, 15527 + ... + 17085.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 2^25421054 is an apocalyptic number.

25421054 is a deficient number, since it is larger than the sum of its proper divisors (14115586).

25421054 is a wasteful number, since it uses less digits than its factorization.

25421054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 25421054 is about 5041.9295909404. The cubic root of 25421054 is about 294.0342024472.

The spelling of 25421054 in words is "twenty-five million, four hundred twenty-one thousand, fifty-four".