25533408 has 48 divisors (see below), whose sum is σ = 68463360. Its totient is φ = 8328576.

The previous prime is 25533401. The next prime is 25533419. The reversal of 25533408 is 80433552.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683 + ... + 7341.

It is an arithmetic number, because the mean of its divisors is an integer number (1426320).

Almost surely, 2^25533408 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 25533408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34231680).

25533408 is an abundant number, since it is smaller than the sum of its proper divisors (42929952).

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

25533408 is a wasteful number, since it uses less digits than its factorization.

25533408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719 (or 5711 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 25533408 is about 5053.0592713721. The cubic root of 25533408 is about 294.4667490032.

The spelling of 25533408 in words is "twenty-five million, five hundred thirty-three thousand, four hundred eight".