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51925 = 523167
BaseRepresentation
bin1100101011010101
32122020011
430223111
53130200
61040221
7304246
oct145325
978204
1051925
1136015
1226071
131a833
1414ccd
15105ba
hexcad5

51925 has 12 divisors (see below), whose sum is σ = 67456. Its totient is φ = 39600.

The previous prime is 51913. The next prime is 51929. The reversal of 51925 is 52915.

51925 = 332 + 342 + ... + 572.

It is not a de Polignac number, because 51925 - 25 = 51893 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 51896 and 51905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742 + ... + 808.

251925 is an apocalyptic number.

It is an amenable number.

51925 is a deficient number, since it is larger than the sum of its proper divisors (15531).

51925 is a wasteful number, since it uses less digits than its factorization.

51925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 103 counting only the distinct ones).

The product of its digits is 450, while the sum is 22.

The square root of 51925 is about 227.8705773021. The cubic root of 51925 is about 37.3071581688.

Subtracting 51925 from its reverse (52915), we obtain a triangular number (990 = T44).

The spelling of 51925 in words is "fifty-one thousand, nine hundred twenty-five".

Divisors: 1 5 25 31 67 155 335 775 1675 2077 10385 51925