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55758492 = 22321548847
BaseRepresentation
bin1101010010110…
…0111010011100
310212220211021100
43110230322130
5103233232432
65311033100
71244640126
oct324547234
9125824240
1055758492
11295241a9
121680b790
13b7234ba
147596216
154d6607c
hex352ce9c

55758492 has 18 divisors (see below), whose sum is σ = 140945168. Its totient is φ = 18586152.

The previous prime is 55758473. The next prime is 55758511. The reversal of 55758492 is 29485755.

55758492 is a `hidden beast` number, since 557 + 5 + 8 + 4 + 92 = 666.

It is an interprime number because it is at equal distance from previous prime (55758473) and next prime (55758511).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×557584922 = 6218018860228128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 774388 + ... + 774459.

Almost surely, 255758492 is an apocalyptic number.

It is an amenable number.

55758492 is an abundant number, since it is smaller than the sum of its proper divisors (85186676).

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

55758492 is a wasteful number, since it uses less digits than its factorization.

55758492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548857 (or 1548852 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 55758492 is about 7467.1609062615. The cubic root of 55758492 is about 382.0354580903.

It can be divided in two parts, 557 and 58492, that added together give a 10-th power (59049 = 310).

The spelling of 55758492 in words is "fifty-five million, seven hundred fifty-eight thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 1548847 3097694 4646541 6195388 9293082 13939623 18586164 27879246 55758492