25484821 has 8 divisors (see below), whose sum is σ = 26949888. Its totient is φ = 24060000.

The previous prime is 25484813. The next prime is 25484827. The reversal of 25484821 is 12848452.

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 25484821 - 2³ = 25484813 is a prime.

It is a super-2 number, since 2×25484821² = 1298952202804082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25484827) 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, 8755 + ... + 11296.

It is an arithmetic number, because the mean of its divisors is an integer number (3368736).

Almost surely, 2^25484821 is an apocalyptic number.

It is an amenable number.

25484821 is a deficient number, since it is larger than the sum of its proper divisors (1465067).

25484821 is a wasteful number, since it uses less digits than its factorization.

25484821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20123.

The product of its digits is 20480, while the sum is 34.

The square root of 25484821 is about 5048.2493005001. The cubic root of 25484821 is about 294.2798521538.

The spelling of 25484821 in words is "twenty-five million, four hundred eighty-four thousand, eight hundred twenty-one".