25545456 has 100 divisors (see below), whose sum is σ = 77240592. Its totient is φ = 8135424.

The previous prime is 25545451. The next prime is 25545461. The reversal of 25545456 is 65454552.

25545456 is a `hidden beast` number, since 2 + 554 + 54 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (25545451) and next prime (25545461).

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 25545456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25545451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29380 + ... + 30236.

Almost surely, 2^25545456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25545456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38620296).

25545456 is an abundant number, since it is smaller than the sum of its proper divisors (51695136).

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

25545456 is a wasteful number, since it uses less digits than its factorization.

25545456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 885 counting only the distinct ones).

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

The square root of 25545456 is about 5054.2512798633. The cubic root of 25545456 is about 294.5130566685.

The spelling of 25545456 in words is "twenty-five million, five hundred forty-five thousand, four hundred fifty-six".