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55316725 = 5217235659
BaseRepresentation
bin1101001100000…
…1000011110101
310212002101021121
43103001003311
5103130113400
65253343541
71241120152
oct323010365
9125071247
1055316725
1129252302
1216637bb1
13b5ca3b9
1474bd229
154cca21a
hex34c10f5

55316725 has 24 divisors (see below), whose sum is σ = 75798720. Its totient is φ = 39832320.

The previous prime is 55316719. The next prime is 55316731. The reversal of 55316725 is 52761355.

It is an interprime number because it is at equal distance from previous prime (55316719) and next prime (55316731).

It is not a de Polignac number, because 55316725 - 25 = 55316693 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, 6946 + ... + 12604.

It is an arithmetic number, because the mean of its divisors is an integer number (3158280).

Almost surely, 255316725 is an apocalyptic number.

It is an amenable number.

55316725 is a deficient number, since it is larger than the sum of its proper divisors (20481995).

55316725 is a wasteful number, since it uses less digits than its factorization.

55316725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709 (or 5704 counting only the distinct ones).

The product of its digits is 31500, while the sum is 34.

The square root of 55316725 is about 7437.5214285406. The cubic root of 55316725 is about 381.0238432963.

The spelling of 55316725 in words is "fifty-five million, three hundred sixteen thousand, seven hundred twenty-five".

Divisors: 1 5 17 23 25 85 115 391 425 575 1955 5659 9775 28295 96203 130157 141475 481015 650785 2212669 2405075 3253925 11063345 55316725