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25920960 = 2635133167
BaseRepresentation
bin110001011100…
…0010111000000
31210202220212120
41202320113000
523113432320
62323324240
7433216212
oct142702700
953686776
1025920960
11136a488a
128820680
1354a7460
14362a5b2
152420440
hex18b85c0

25920960 has 224 divisors, whose sum is σ = 92854272. Its totient is φ = 6082560.

The previous prime is 25920953. The next prime is 25920967. The reversal of 25920960 is 6902952.

It is an interprime number because it is at equal distance from previous prime (25920953) and next prime (25920967).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25920967) 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, 386847 + ... + 386913.

It is an arithmetic number, because the mean of its divisors is an integer number (414528).

Almost surely, 225920960 is an apocalyptic number.

25920960 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 25920960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46427136).

25920960 is an abundant number, since it is smaller than the sum of its proper divisors (66933312).

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

25920960 is a wasteful number, since it uses less digits than its factorization.

25920960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 25920960 is about 5091.2631045743. The cubic root of 25920960 is about 295.9491025221.

The spelling of 25920960 in words is "twenty-five million, nine hundred twenty thousand, nine hundred sixty".