25533456 has 160 divisors (see below), whose sum is σ = 78744960. Its totient is φ = 7053312.

The previous prime is 25533451. The next prime is 25533457. The reversal of 25533456 is 65433552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307591 + ... + 307673.

It is an arithmetic number, because the mean of its divisors is an integer number (492156).

Almost surely, 2^25533456 is an apocalyptic number.

25533456 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 25533456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39372480).

25533456 is an abundant number, since it is smaller than the sum of its proper divisors (53211504).

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

25533456 is a wasteful number, since it uses less digits than its factorization.

25533456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 147 counting only the distinct ones).

The product of its digits is 54000, while the sum is 33.

The square root of 25533456 is about 5053.0640209679. The cubic root of 25533456 is about 294.4669335248.

The spelling of 25533456 in words is "twenty-five million, five hundred thirty-three thousand, four hundred fifty-six".