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25230775 = 5247109197
BaseRepresentation
bin110000000111…
…1110110110111
31202110212010011
41200033312313
522424341100
62300441051
7424313053
oct140176667
952425104
1025230775
1113273289
128549187
1352c526b
1434cac63
152335bba
hex180fdb7

25230775 has 24 divisors (see below), whose sum is σ = 32408640. Its totient is φ = 19474560.

The previous prime is 25230769. The next prime is 25230797. The reversal of 25230775 is 57703252.

It is not a de Polignac number, because 25230775 - 25 = 25230743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127977 + ... + 128173.

It is an arithmetic number, because the mean of its divisors is an integer number (1350360).

Almost surely, 225230775 is an apocalyptic number.

25230775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25230775 is a deficient number, since it is larger than the sum of its proper divisors (7177865).

25230775 is a wasteful number, since it uses less digits than its factorization.

25230775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 25230775 is about 5023.0244872985. The cubic root of 25230775 is about 293.2987397508.

The spelling of 25230775 in words is "twenty-five million, two hundred thirty thousand, seven hundred seventy-five".

Divisors: 1 5 25 47 109 197 235 545 985 1175 2725 4925 5123 9259 21473 25615 46295 107365 128075 231475 536825 1009231 5046155 25230775