25479954 has 48 divisors (see below), whose sum is σ = 58626720. Its totient is φ = 8202600.

The previous prime is 25479953. The next prime is 25479967. The reversal of 25479954 is 45997452.

It is not an unprimeable number, because it can be changed into a prime (25479953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51649 + ... + 52139.

It is an arithmetic number, because the mean of its divisors is an integer number (1221390).

Almost surely, 2^25479954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25479954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29313360).

25479954 is an abundant number, since it is smaller than the sum of its proper divisors (33146766).

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

25479954 is a wasteful number, since it uses less digits than its factorization.

25479954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 527 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 25479954 is about 5047.7672291816. The cubic root of 25479954 is about 294.2611174564.

It can be divided in two parts, 254 and 79954, that added together give a palindrome (80208).

The spelling of 25479954 in words is "twenty-five million, four hundred seventy-nine thousand, nine hundred fifty-four".