25455456 has 108 divisors (see below), whose sum is σ = 78535548. Its totient is φ = 7817472.

The previous prime is 25455449. The next prime is 25455461. The reversal of 25455456 is 65455452.

25455456 is a `hidden beast` number, since 2 + 54 + 554 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 25455456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 48411 + ... + 48933.

It is an arithmetic number, because the mean of its divisors is an integer number (727181).

Almost surely, 2^25455456 is an apocalyptic number.

25455456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25455456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39267774).

25455456 is an abundant number, since it is smaller than the sum of its proper divisors (53080092).

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

25455456 is a wasteful number, since it uses less digits than its factorization.

25455456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 541 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 25455456 is about 5045.3400281844. The cubic root of 25455456 is about 294.1667802842.

It can be divided in two parts, 2545 and 5456, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 25455456 in words is "twenty-five million, four hundred fifty-five thousand, four hundred fifty-six".