25448121 has 16 divisors (see below), whose sum is σ = 38051200. Its totient is φ = 16807824.

The previous prime is 25448113. The next prime is 25448153. The reversal of 25448121 is 12184452.

It is not a de Polignac number, because 25448121 - 2³ = 25448113 is a prime.

It is a super-3 number, since 3×25448121³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25448021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (2378200).

Almost surely, 2^25448121 is an apocalyptic number.

It is an amenable number.

25448121 is a deficient number, since it is larger than the sum of its proper divisors (12603079).

25448121 is a wasteful number, since it uses less digits than its factorization.

25448121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765 (or 8759 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 25448121 is about 5044.6130674215. The cubic root of 25448121 is about 294.1385228108.

The spelling of 25448121 in words is "twenty-five million, four hundred forty-eight thousand, one hundred twenty-one".