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55037660 = 2252751883
BaseRepresentation
bin1101000111110…
…0111011011100
310211120012110212
43101330323130
5103042201120
65243351552
71235545436
oct321747334
9124505425
1055037660
1129081677
12165225b8
13b530382
147449656
154c726c5
hex347cedc

55037660 has 12 divisors (see below), whose sum is σ = 115579128. Its totient is φ = 22015056.

The previous prime is 55037659. The next prime is 55037681. The reversal of 55037660 is 6673055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375922 + ... + 1375961.

It is an arithmetic number, because the mean of its divisors is an integer number (9631594).

Almost surely, 255037660 is an apocalyptic number.

It is an amenable number.

55037660 is an abundant number, since it is smaller than the sum of its proper divisors (60541468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55037660 is a wasteful number, since it uses less digits than its factorization.

55037660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751892 (or 2751890 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 55037660 is about 7418.7370892895. The cubic root of 55037660 is about 380.3820257812.

The spelling of 55037660 in words is "fifty-five million, thirty-seven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2751883 5503766 11007532 13759415 27518830 55037660