25421076 has 18 divisors (see below), whose sum is σ = 64258922. Its totient is φ = 8473680.

The previous prime is 25421063. The next prime is 25421083. The reversal of 25421076 is 67012452.

It can be written as a sum of positive squares in only one way, i.e., 20250000 + 5171076 = 4500^2 + 2274^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×25421076² = 1292462209995552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 353035 + ... + 353106.

Almost surely, 2^25421076 is an apocalyptic number.

It is an amenable number.

25421076 is an abundant number, since it is smaller than the sum of its proper divisors (38837846).

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

25421076 is a wasteful number, since it uses less digits than its factorization.

25421076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706151 (or 706146 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25421076 is about 5041.9317726443. The cubic root of 25421076 is about 294.0342872687.

The spelling of 25421076 in words is "twenty-five million, four hundred twenty-one thousand, seventy-six".