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25320960 = 293257157
BaseRepresentation
bin110000010010…
…1111000000000
31202122102211100
41200211320000
522440232320
62302414400
7425140020
oct140457000
952572740
1025320960
1113325015
128591400
135327322
143511a80
152352790
hex1825e00

25320960 has 240 divisors, whose sum is σ = 100859616. Its totient is φ = 5750784.

The previous prime is 25320947. The next prime is 25320961. The reversal of 25320960 is 6902352.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25320961) 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, 161202 + ... + 161358.

Almost surely, 225320960 is an apocalyptic number.

25320960 is a gapful number since it is divisible by the number (20) 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 25320960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50429808).

25320960 is an abundant number, since it is smaller than the sum of its proper divisors (75538656).

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

25320960 is a wasteful number, since it uses less digits than its factorization.

25320960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 25320960 is about 5031.9936406955. The cubic root of 25320960 is about 293.6477803382.

The spelling of 25320960 in words is "twenty-five million, three hundred twenty thousand, nine hundred sixty".