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BaseRepresentation
bin100110110001…
…0010101011101
31102020122122122
41031202111131
520200410400
62003352325
7334523450
oct115422535
942218578
1020325725
1110523022
1269826a5
134298774
1429b1497
151bb7685
hex136255d

20325725 has 24 divisors (see below), whose sum is σ = 30325440. Its totient is φ = 13201920.

The previous prime is 20325707. The next prime is 20325733. The reversal of 20325725 is 52752302.

It is not a de Polignac number, because 20325725 - 216 = 20260189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20325694 and 20325703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269 + ... + 6381.

It is an arithmetic number, because the mean of its divisors is an integer number (1263560).

Almost surely, 220325725 is an apocalyptic number.

20325725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20325725 is a deficient number, since it is larger than the sum of its proper divisors (9999715).

20325725 is a wasteful number, since it uses less digits than its factorization.

20325725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6149 (or 6144 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 20325725 is about 4508.4060376146. The cubic root of 20325725 is about 272.9074229788.

The spelling of 20325725 in words is "twenty million, three hundred twenty-five thousand, seven hundred twenty-five".