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25530701 = 729314057
BaseRepresentation
bin110000101100…
…1000101001101
31210001002112112
41201121011031
523013440301
62311113405
7430002350
oct141310515
953032475
1025530701
1113458659
128672865
13539b931
143568297
1523949bb
hex185914d

25530701 has 16 divisors (see below), whose sum is σ = 31165440. Its totient is φ = 20442240.

The previous prime is 25530689. The next prime is 25530707. The reversal of 25530701 is 10703552.

It is not a de Polignac number, because 25530701 - 218 = 25268557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4265 + ... + 8321.

It is an arithmetic number, because the mean of its divisors is an integer number (1947840).

Almost surely, 225530701 is an apocalyptic number.

It is an amenable number.

25530701 is a deficient number, since it is larger than the sum of its proper divisors (5634739).

25530701 is a wasteful number, since it uses less digits than its factorization.

25530701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 25530701 is about 5052.7914067375. The cubic root of 25530701 is about 294.4563423801.

The spelling of 25530701 in words is "twenty-five million, five hundred thirty thousand, seven hundred one".

Divisors: 1 7 29 31 203 217 899 4057 6293 28399 117653 125767 823571 880369 3647243 25530701