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25155066 = 234192511
BaseRepresentation
bin101111111110…
…1010111111010
31202100000021010
41133331113322
522414430231
62255054350
7423546246
oct137752772
952300233
1025155066
1113221412
1285113b6
135299971
1434ab426
15231d546
hex17fd5fa

25155066 has 8 divisors (see below), whose sum is σ = 50310144. Its totient is φ = 8385020.

The previous prime is 25155061. The next prime is 25155073. The reversal of 25155066 is 66055152.

It is a sphenic number, since it is the product of 3 distinct primes.

25155066 is an admirable number.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (25155061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2096250 + ... + 2096261.

It is an arithmetic number, because the mean of its divisors is an integer number (6288768).

Almost surely, 225155066 is an apocalyptic number.

25155066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25155066 is a wasteful number, since it uses less digits than its factorization.

25155066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192516.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 25155066 is about 5015.4826288205. The cubic root of 25155066 is about 293.0050824793.

The spelling of 25155066 in words is "twenty-five million, one hundred fifty-five thousand, sixty-six".

Divisors: 1 2 3 6 4192511 8385022 12577533 25155066